Cita APA (7th ed.)
Niven, I. (1966). Calculus: An introductory approach (2nd ed.). D.Van Nostrand.
Cita Chicago (17th ed.)
Niven, Ivan. Calculus: An Introductory Approach. 2nd ed. Toronto: D.Van Nostrand, 1966.
Cita MLA (9th ed.)
Niven, Ivan. Calculus: An Introductory Approach. 2nd ed. D.Van Nostrand, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.