Lial, M. L., Miller, C. D., & Schneider, D. I. (1994). Algebra and trigonometry (Sixth edition.). HarperCollins College Publishers.

Lial, Margaret L., Charles David Miller, and David I. Schneider. Algebra and Trigonometry. Sixth edition. New York: HarperCollins College Publishers, 1994.

Lial, Margaret L., et al. Algebra and Trigonometry. Sixth edition. HarperCollins College Publishers, 1994.