Cita APA (7th ed.)

Beecher, J. A., Penna, J. A., & Bittinger, M. L. (2008). College algebra (3rd ed.). Houghton Mifflin.

Cita Chicago (17th ed.)

Beecher, Judith A., Judith A. Penna, i Marvin L. Bittinger. College Algebra. 3rd ed. Boston: Houghton Mifflin, 2008.

Cita MLA (9th ed.)

Beecher, Judith A., et al. College Algebra. 3rd ed. Houghton Mifflin, 2008.