APA (7th ed.) Citation

Foerster, P. A. (1977). Trigonometry: Functions and applications.

Chicago Style (17th ed.) Citation

Foerster, Paul A. Trigonometry: Functions and Applications. Menlo Park, Calif. :�ddison-Wesley, 1977.

MLA (9th ed.) Citation

Foerster, Paul A. Trigonometry: Functions and Applications. 1977.

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