APA (7th ed.) Citation
Drooyan, I. (1987). Trigonometry: An analytic approach (5.ed.). Macmillan Publishing Company.
Chicago Style (17th ed.) Citation
Drooyan, Irving. Trigonometry: An Analytic Approach. 5.ed. New York: Macmillan Publishing Company, 1987.
MLA (9th ed.) Citation
Drooyan, Irving. Trigonometry: An Analytic Approach. 5.ed. Macmillan Publishing Company, 1987.
Warning: These citations may not always be 100% accurate.