Aircraft radio and electrical equipment,

by Morgan, Howard Key
New York, Chicago, Pitman publishing corporation 1939
2d ed.

Aircraft radio and electrical equipment,

by Morgan, Howard Key
New York, Chicago, Pitman Pub. Corp. 1939

Industrial training and testing.

by Morgan, Howard Key, 1906-
New York ; London : McGraw-Hill book company, inc., 1945
First edition.

Use of numbers, prepared for aircraft flight and ground crews.

Washington, D.C., 1942