Gaya APA

Purcell, E, J. et al (1989). Kalkulus dan geometri analitis jilid 2 (Calculus with analytic geometry) . : .

Gaya MLA

Purcell, Edwin, J.. et al. "Kalkulus dan geometri analitis jilid 2 (Calculus with analytic geometry)". : , 1989. Text.