APA (7th ed.) Citation

Keedy, M. L., Bittinger, M. L., & Beecher, J. A. (1993). Algebra and trigonometry (6th ed.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Keedy, Mervin L., Marvin L. Bittinger, and Judith A. Beecher. Algebra and Trigonometry. 6th ed. Reading, Mass. [u.a.]: Addison-Wesley, 1993.

MLA (9th ed.) Citation

Keedy, Mervin L., et al. Algebra and Trigonometry. 6th ed. Addison-Wesley, 1993.