Gaya APA

Beckenbach, E, F., Irving, I, D. (1968). **Modern college algebra and trigonometry . California: California: Wadsworth Publishing ; 1968.

Gaya MLA

Beckenbach, Edwin, F., Irving, I., Drooyan,. "**Modern college algebra and trigonometry". California: California: Wadsworth Publishing ; 1968, 1968. Text.