APA (7th ed.) Citation

Crowdis, D. G., & Wheeler, B. W. (1971). Trigonometry: A functional approach. McGraw-Hill.

Chicago Style (17th ed.) Citation

Crowdis, David G., and Brandon W. Wheeler. Trigonometry: A Functional Approach. New York: McGraw-Hill, 1971.

MLA (9th ed.) Citation

Crowdis, David G., and Brandon W. Wheeler. Trigonometry: A Functional Approach. McGraw-Hill, 1971.