Bill, the Galactic Hero
Harry Harrison
Bill, the Galactic Hero: The Planet of the Robot Slaves
Harry Harrison
Bill, the Galactic Hero on The Planet of Bottled Brains
Robert Sheckley & Harry Harrison
Bill, the Galactic Hero: Planet of Tasteless Pleasure
Harry Harrison & David Bischoff
Bill, the Galactic Hero: Planet of the Zombie Vampires
Harry Harrison & Jack C Haldeman II
Bill, the Galactic Hero: The Final Incoherent Adventure
Harry Harrison & David Harris
Bill, the Galactic Hero: Planet of the Hippies from Hell
Harry Harrison & David Bischoff