Cita APA (7th ed.)
Larson, R. E. (1989). Algebra and Trigonometry (2nd ed.). D.C. Heath and Co..
Cita Chicago (17th ed.)
Larson, Roland E. Algebra and Trigonometry. 2nd ed. Lexington: D.C. Heath and Co., 1989.
Cita MLA (9th ed.)
Larson, Roland E. Algebra and Trigonometry. 2nd ed. D.C. Heath and Co., 1989.
Atenció: Aquestes cites poden no estar 100% correctes.