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Civil Aeronautics Authority. "Digest of the Civil Air Regulations for Student and Private Pilots." Washington: United States Government Printing Office, 1940.

Civil Air Patrol. "Organization Purpose Program Enlistment." Washington D.C.: United States Office of Civilian Defense, 1941.

Lyon, Thoburn C. "Practical Air Navigation." Washington: United States Government Printing Office, 1939.

Mahachek, Ross. Airplane Pilot's Manual. New York: G. P. Putnam's Sons, 1932.

Mingos, Howard. Flying for 1937. New York: Aeronautical Chamber of Commerce of America, Inc., 1936.

Reader's Digest. "A Pocket Reference Guide to Army-Navy-Air Corps Insignia." 1943

Sorenson, Frank E. "Essential Understandings for the Age of Flight." U.S.A.: State of Nebraska Department of Public Instruction, 1944.

Taylorcraft Aviation Corp. "America's Wings: Taylorcraft." Cleveland: Copifyer Lithogram Corp., 1941.

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U.S. Civil Aeronautics Authority. "Primary Ground Study Manual." Washington: United States Government Printing Office, 1939.

United Air Lines. "S.V.E. Picturol Teacher's Manual." Chicago: Society for Visual Education, n.d.

Wheatley, William A. and Ray O. Mertes, ed. " Aviation Manual for Junior and Senior High Schools." Chicago: United Air Lines, n.d.