APA (7th ed.) Citation
Campbell R. N. & Maitland P. S. (1992). Freshwater fishes of the British Isles. Harper Collins Publishers.
Chicago Style (17th ed.) Citation
Campbell R. N. and Maitland P. S. Freshwater Fishes of the British Isles. Harper Collins Publishers, 1992.
MLA (9th ed.) Citation
Campbell R. N. and Maitland P. S. Freshwater Fishes of the British Isles. Harper Collins Publishers, 1992.
Warning: These citations may not always be 100% accurate.