- Operation Market-Garden 1944 (2)
- Operation Market-Garden: Ultra Intelligence Ignored
- Operation Neptune
- Operation Neptune [Illustrated Edition]
- Operation Nimrod: The Iranian Embassy Siege
- Operation Pacific
- Operation Pedestal
- Operation Rösselprung And The Elimination Of Tito, 25 May 1944: A Failure In Planning And Intelligen...
- Operation Sea Lion: A Joint Critical Analysis
- Operation Stalemate II
- Operation Thursday: Birth of the Air Commandos [Illustrated Edition]
- Operation Totalize
- Operational Art And The 1813 Campaign In Germany
- Operational Art in the Defense: The German Abwehrschlachten in 1918
- Operational Employment of the Airborne Brigade Combat Team: The 503d Parachute Infantry Regiment as ...
- Operational Encirclement: Quick Decisive Victory or a Bridge Too Far?
- Operational Leadership as Practiced by Field Marshal Erwin Rommel During the German Campaign in Nort...
- Operational Logic and Identifying Soviet Operational Centers of Gravity During Operation Barbarossa,...
- Operational Performance Of The US 28th Infantry Division September To December 1944
- Operational Principles: The Operational Art of Erwin Rommel and Bernard Montgomery
- Operational Tenets Of Generals Heinz Guderian And George S. Patton, Jr
- Operations of the Allied Army Under the Duke of Brunswick
- Operations of the Fifth or Picton's Division In the Campaign of Waterloo
- Operazione Ogro
- Opere di Alfredo Oriani
- Opere di Augusto Elia
- Opere di Carlo Botta
- Opere di Cesare Cantù
- Opere di Filippo Sassetti
- Opere di Francesco Crispi
- Opere di Francesco Guicciardini
- Opere di Gabriele Rosa
- Opere di Galeazzo Gualdo Priorato
- Opere di Giuseppe Garibaldi
- Opere di Goffredo Mameli
- Opere di Heinrich von Treitschke
- Opere di Jean-Charles-Léonard Simonde de Sismondi
- Opere di Lorenzino de' Medici
- Opere di Michele Amari
- Opere di Niccolò Machiavelli
- Opinions sociales
- Opisanie powiatu Borysowskiego pod względem statystycznym, geognostycznym, historycznym, gospodarcz...
- Oporto 1809
- Opportunity in Danger: Manstein’s East Front Strategy from 19 November 1942 to 18 March 1943
- Opposing Australia’s First Assisted Immigrants, 1832-42
- Opposing the Slavers
- Oppressions of the Sixteenth Century in the Islands of Orkney and Zetland: From Original Documents
- Opptøyer i Norge 1750-1850
- Opptøyer i Norge 1750-1850
- OPQRSTU 3D
- Optegnelser om Gisselfeld.
- Opúsculos por Alexandre Herculano (Complete)
- The Aristocrats
- Opúsculos por Alexandre Herculano - Tomo 05
- Ora Pro Nobis
- Oradour
- Oratio tragedica
- Orb?n
- Orchestrating Europe (Text Only)
- Ordeal By Sea; The Tragedy Of The U.S.S. Indianapolis
- Order and Insecurity in Germany and Turkey
- Order Out Of Chaos
- Orderly and Humane
- Ordinacions de la Casa i Cort de Pere el Ceremoniós
- Ordinance of William the Conqueror Separating the Spiritual and Temporal Courts
- Ordinary Jews
- Ordinary Violence in Mussolini's Italy
- Ordinary Workers, Vichy and the Holocaust
- Ordnance Gazetteer of Scotland ... New edition. Edited by F. H. Groome.
- Ordoliberalism and European Economic Policy
- Organic Design in Twentieth-Century Nordic Architecture
- Organisation du travail
- Organisation Todt: From Autobahns to Atlantic Wall
- Organisation: How Armies are Formed For War
- Organisierte Gewalt in der europäischen Expansion
- Organizational Influence Processes
- Organized Crime in Southeast Europe
- Organizing Democracy
- Organizing Empire
- Organizing the 20th-Century World
- Oriana & Aurora
- Orient-Express
- Orientalism and the Figure of the Jew
- Oriente y Occidente en tiempos de las Cruzadas
- Origen Del Pueblo Longobardo
- Origens do Sebastianismo
- Origin and characteristics of the people in the counties of Down and Antrim, etc.
- Origin of the Anglo-Saxon Race
- Original Documents relating to Bristol and the neighbourhood. [Reprinted from the “Journal of the Br...
- Original Documents relating to Sheffield, principally in connection with Mary, Queen of Scots. Repri...
- Origines de l’architecture française
- Origines des noms du Sud-Ouest
- Origines Europaeae. Die alten Völker Europas mit ihren Sippen und Nachbarn. Studien.
- Origini del Popolo Longobardo
- Origini e storia della massoneria. Il Tempio e la Loggia
- Origins of Democratic Culture
- Origins of Pan-Africanism
- Origins of the Breakup of Yugoslavia (SFRY) in the 1990s - Fierce Disputes Between Serbs and Croats,...
- Origins of the Triple Alliance
- Origins of the Witches’ Sabbath
- Oriundi
- Orkney and Shetland
- Ormurin Langi
- Ornament and European Modernism
- Oro incenso e mirra
- Orphans and Abandoned Children in European History
- Orphans of Empire
- Orphans of The Empire
- Orthodox Radicals
- Orton Old Hall, or Petty Hall, Orton ... Reprinted from the Transactions of the Cumberland and Westm...
- Ortona Street Fight
- Ortsnamenbuch der Steiermark im Mittelalter
- Ortszeit
- Ortutay Mária Sorsunk a nagyvilágban Szerkesztette Ortutay Péter
- Orvieto. Note storiche e biografiche.
- Orwell in Spain
- Orwell Reconsidered
- Orígenes y desarrollo de la guerra santa en la Península Ibérica
- Os Apelidos Portugueses - Um Panorama Histórico
- Os bebês de Auschwitz
- Os caminhos-de-ferro de Sul e Sueste e o relatório do engenheiro C. F. White (1868)
- Os Crioulos de Cabo Verde
- Os Desafios Da Igreja Anglicana Na Atualidade
- Os descobrimentos portuguezes e os de Colombo: Tentativa de coordenação historica
- Os Escandinavos
- Os Espanhóis
- Os Filhos do Padre Anselmo
- Os Franceses
- Os Ingleses
- Os Italianos
- Os Lusíadas
- Os Mistérios De Elêusis
- Os Municípios no Portugal Moderno
- Os Portugueses
- Os Reis Taumaturgos
- Os russos
- Os segredos do nazismo
- Os Tripeiros
- Oscar Wilde On Dress
- Oscar Wilde Prefigured
- Osmanen- und Ständepolitik im Reich als Reformationsfördernde Faktoren
- Osservazioni sul ristabilimento della Via Appia da Roma a Brindisi per il Viaggio ad Atene, e nuovo ...