APA (7th ed.) Citation

Aument, H. C. (1943). Airplane hydraulic systems .. [publisher not identified].

Chicago Style (17th ed.) Citation

Aument, Hugh C. Airplane Hydraulic Systems .. New York: [publisher not identified], 1943.

MLA (9th ed.) Citation

Aument, Hugh C. Airplane Hydraulic Systems .. [publisher not identified], 1943.