APA (7th ed.) Citation

Whitlock, R., Weaver, N., Swift, T., & Weare, P. (1978). A closer look at butterflies and moths. Gloucester Press.

Chicago Style (17th ed.) Citation

Whitlock, Ralph, Norman Weaver, Tony Swift, and Phil Weare. A Closer Look at Butterflies and Moths. New York: Gloucester Press, 1978.

MLA (9th ed.) Citation

Whitlock, Ralph, et al. A Closer Look at Butterflies and Moths. Gloucester Press, 1978.