Swokowski, E. W., & Cole, J. A. (1997). Fundamentals of algebra and trigonometry (9th ed.). Brooks/Cole.
Cita Chicago Style (17a ed.)Swokowski, Earl William, y Jeffery A. Cole. Fundamentals of Algebra and Trigonometry. 9th ed. Pacific Grove: Brooks/Cole, 1997.
Cita MLA (8a ed.)Swokowski, Earl William, y Jeffery A. Cole. Fundamentals of Algebra and Trigonometry. 9th ed. Brooks/Cole, 1997.
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