APA (7th ed.) Citation

Leahy, C., White, R. E., & Borror, D. J. (1987). Peterson first guide to insects of North America. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Leahy, Christopher, Richard E. White, and Donald J. Borror. Peterson First Guide to Insects of North America. Boston: Houghton Mifflin, 1987.

MLA (9th ed.) Citation

Leahy, Christopher, et al. Peterson First Guide to Insects of North America. Houghton Mifflin, 1987.