APA (7th ed.) Citation

Korinzukai, Fitter, R., & Manuel, R. (1986). Field guide to the freshwater life of Britain and North-West Europe. Collins.

Chicago Style (17th ed.) Citation

Korinzukai, R. Fitter, and R. Manuel. Field Guide to the Freshwater Life of Britain and North-West Europe. London: Collins, 1986.

MLA (8th ed.) Citation

Korinzukai, et al. Field Guide to the Freshwater Life of Britain and North-West Europe. Collins, 1986.