APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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