APA (7th ed.) Citation

Crane, L. B., Yeager, E., & Whitman, R. L. (1981). An introduction to linguistics. Little, Brown.

Chicago Style (17th ed.) Citation

Crane, L. Ben, Edward Yeager, and Randal L. Whitman. An Introduction to Linguistics. Boston: Little, Brown, 1981.

MLA (9th ed.) Citation

Crane, L. Ben, et al. An Introduction to Linguistics. Little, Brown, 1981.