Niven, I. (1966). Calculus: An introductory approach (2nd ed.). D.Van Nostrand.
Lua i Stíl Chicago (17ú heag.)Niven, Ivan. Calculus: An Introductory Approach. 2nd ed. Toronto: D.Van Nostrand, 1966.
Lua MLA (9ú heag.)Niven, Ivan. Calculus: An Introductory Approach. 2nd ed. D.Van Nostrand, 1966.
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