APA (7th ed.) Citation

Weems, P. V. H., & Link, E. A. (1940). Simplified celestial navigation. Weems System of Navigation.

Chicago Style (17th ed.) Citation

Weems, Philip Van Horn, and Edwin A. Link. Simplified Celestial Navigation. Annapolis, Md.: Weems System of Navigation, 1940.

MLA (9th ed.) Citation

Weems, Philip Van Horn, and Edwin A. Link. Simplified Celestial Navigation. Weems System of Navigation, 1940.

Warning: These citations may not always be 100% accurate.