Cita APA (7a ed.)

Beckenbach, E. F., & Drooyan, I. (1968). Modern college algebra and trigonometry. Wadsworth Publishing Comapny.

Cita Chicago Style (17a ed.)

Beckenbach, Edwin F., y Irving Drooyan. Modern College Algebra and Trigonometry. Belmont: Wadsworth Publishing Comapny, 1968.

Cita MLA (9a ed.)

Beckenbach, Edwin F., y Irving Drooyan. Modern College Algebra and Trigonometry. Wadsworth Publishing Comapny, 1968.