Strategic Air Warfare.

Washington, D.C.: Office of Air Force History, 1988.

Koppes, Clayton R.

JPL and the American Space Program.

New Haven, Conn.: Yale University

Lasby, Clarence G.

New York: Atheneum, 1971.

Lay, Beirne.

Earthbound Astronauts: The Builders of Apollo-Saturn.

Englewood Cliffs, N.J.:

Shafi da ba'a sani ba