APA (7th ed.) Citation

Walker, E. E. (1939). Aviation: Or, Human flight though the ages, with drawings, illustrations and photographs. Aeronautics Education Foundation.

Chicago Style (17th ed.) Citation

Walker, Ernest Edward. Aviation: Or, Human Flight Though the Ages, with Drawings, Illustrations and Photographs. Washington, D.C.: Aeronautics Education Foundation, 1939.

MLA (9th ed.) Citation

Walker, Ernest Edward. Aviation: Or, Human Flight Though the Ages, with Drawings, Illustrations and Photographs. Aeronautics Education Foundation, 1939.