Cita APA (7a ed.)

Keedy, M. L., Baumgart, J., & Beecher, J. A. (1990). Instructor's resource guide: Algebra and trigonometry (5th. ed.). Addison-Wesley.

Cita Chicago Style (17a ed.)

Keedy, Mervin L., John Baumgart, y Judith A. Beecher. Instructor's Resource Guide: Algebra and Trigonometry. 5th. ed. New York: Addison-Wesley, 1990.

Cita MLA (8a ed.)

Keedy, Mervin L., et al. Instructor's Resource Guide: Algebra and Trigonometry. 5th. ed. Addison-Wesley, 1990.