Gaya APA

Varberg, D., Purcell, E, J. (1985). Calculus With Analytic Geometry (Ed. 5). London: Prentice - Hall International.

Gaya MLA

Varberg, Dale., Purcell, Edwin, J.. "Calculus With Analytic Geometry". Ed. 5 London: Prentice - Hall International, 1985. Text.