プロジェクト・マンハイ
Craig Ryan, The Pre-Astronauts: Manned Ballooning on the Threshold of Space, Naval Institute Press, 1995 (ISBN 1-55750-732-5).
"Touching Space: The story of Project Manhigh" by Gregory P. Kennedy (Schiffer Books).
"Manhigh" by Lt. Col. David G. Simons (MC) USAF with Don A. Schanche, (Avon Books, 1960).