APA (7th ed.) Citation

Emmet, A. M., Fletcher, D., Lewington, R., & Freed, T. (1996). The moths and butterflies of Great Britain and Ireland. Harley.

Chicago Style (17th ed.) Citation

Emmet, A. Maitland, D.S Fletcher, Richard Lewington, and Timothy Freed. The Moths and Butterflies of Great Britain and Ireland. Colchester: Harley, 1996.

MLA (9th ed.) Citation

Emmet, A. Maitland, et al. The Moths and Butterflies of Great Britain and Ireland. Harley, 1996.