APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Fitter, Richard, and Richard Manuel. Field Guide to the Freshwater Life of Britain and North-west Europe. Collins, 1986.