McKEAGUE, C. P. (1981). Introductory mathematics. Wadsworth Pub. Co.
Lua i Stíl Chicago (17ú heag.)McKEAGUE, Charles P. Introductory Mathematics. Belmont: Wadsworth Pub. Co, 1981.
Lua MLA (9ú heag.)McKEAGUE, Charles P. Introductory Mathematics. Wadsworth Pub. Co, 1981.
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