APA (7th ed.) Citation

Drooyan, I. (1983). Trigonometry: An analytic approach (4th ed.). Macmillan Publishing.

Chicago Style (17th ed.) Citation

Drooyan, Irving. Trigonometry: An Analytic Approach. 4th ed. New York: Macmillan Publishing, 1983.

MLA (9th ed.) Citation

Drooyan, Irving. Trigonometry: An Analytic Approach. 4th ed. Macmillan Publishing, 1983.

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