Purdue Studies in Aeronautics and Astronautics
John Norberg and Others
Series • 9 Books • Transportation
In Their Own Words
Fred Erisman
Calculated Risk
George Leopold
John Houbolt
William F. Causey
A Reluctant Icon
James R. Hansen
Piercing the Horizon
Sunny Tsiao
Through Astronaut Eyes
Jennifer K. Levasseur
Spacewalker
Jerry L. Ross
British Imperial Air Power
Alex M. Spencer
Dear Neil Armstrong
James R. Hansen