Cita APA (7a ed.)

Weems, P. V. H., & Zweng, C. A. (1940). Instrument Flying. Weems System of Nagivation.

Cita Chicago Style (17a ed.)

Weems, P. V. H., y Charles A. Zweng. Instrument Flying. Annapolis: Weems System of Nagivation, 1940.

Cita MLA (9a ed.)

Weems, P. V. H., y Charles A. Zweng. Instrument Flying. Weems System of Nagivation, 1940.