Cita APA (7th ed.)

BITTINGER, M. L., & BEECHER, J. A. (1990). College algebra. Addison-Wesley.

Cita Chicago (17th ed.)

BITTINGER, Marvin L., i Judith A. BEECHER. College Algebra. Reaading: Addison-Wesley, 1990.

Cita MLA (9th ed.)

BITTINGER, Marvin L., i Judith A. BEECHER. College Algebra. Addison-Wesley, 1990.