6 books in series

Apogee Books Space Series

Apogee Books Space Series is a 6-book series with 6 primary works first released in 1977 with contributions by Gerard K. O'Neill, Frederick Ira Ordway III, Mitchell R. Sharpe, Ed Buckbee, Wally Schirra, Wernher von Braun, Irene E. Powell-Willhite, and James Dewar.