APA (7th ed.) Citation

Weems, P. V. H., Zweng, C. A., & Stark, H. C. (1957). Instrument flying ([6th rev. ed.].). Weems System of Navigation.

Chicago Style (17th ed.) Citation

Weems, Philip Van Horn, Charles A. Zweng, and Howard C. Stark. Instrument Flying. [6th rev. ed.]. Annapolis: Weems System of Navigation, 1957.

MLA (9th ed.) Citation

Weems, Philip Van Horn, et al. Instrument Flying. [6th rev. ed.]. Weems System of Navigation, 1957.