Spires, David N.  Beyond Horizons A Half Century of Air Force Space Leadership Revised Edition. Air Force Space Command in association with Air University Press, Washington D.C.  383 p. 1998. 

This book gives detailed historical accounts of Air Force participation in the space program.  Since before NASA, the Air Force has played a major role in development and testing of spacecraft, and on the effects of air and space travel on humans. 

Part I (4.2MB)	Part II (2.6MB)
Part III (2.3MB)	Part IV (2.1MB)
Part V (4.3MB)	Part VI (2.3MB)
Part VII (2.5MB)	Part VIII (1.6MB)