APA (7th ed.) Citation

Crabtree, D. E., Eccles, F. M., & Smith, N. B. (1987). Precalculus. Scott, Foresman.

Chicago Style (17th ed.) Citation

Crabtree, Douglas E., Frank M. Eccles, and Nathaniel B. Smith. Precalculus. Glenview, Ill.: Scott, Foresman, 1987.

MLA (9th ed.) Citation

Crabtree, Douglas E., et al. Precalculus. Scott, Foresman, 1987.