McKEAGUE, C. P. (1981). Introductory mathematics. Wadsworth Pub. Co.
Cita Chicago (17th ed.)McKEAGUE, Charles P. Introductory Mathematics. Belmont: Wadsworth Pub. Co, 1981.
Cita MLA (9th ed.)McKEAGUE, Charles P. Introductory Mathematics. Wadsworth Pub. Co, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.