Cita APA (7th ed.)

Bittinger, M. L., & Beecher, J. A. (1989). Algebra and trigonometry. Addison-Wesley.

Cita Chicago (17th ed.)

Bittinger, Marvin L., i Judith A. Beecher. Algebra and Trigonometry. Massachusetts: Addison-Wesley, 1989.

Cita MLA (9th ed.)

Bittinger, Marvin L., i Judith A. Beecher. Algebra and Trigonometry. Addison-Wesley, 1989.