APA aipamena

Varberg, D. E., & Purcell, E. J. (1997). Calculus (7th ed.). Prentice Hall.

Chicago Style aipamena

Varberg, Dale E., and Edwin J. Purcell. Calculus. 7th ed. Upper Saddle River, N.J: Prentice Hall, 1997.

MLA aipamena

Varberg, Dale E., and Edwin J. Purcell. Calculus. 7th ed. Prentice Hall, 1997.