APA (7th ed.) Citation

Hervey & Hems. (1973). A guide to freshwater aquarium fishe. Hamlyn.

Chicago Style (17th ed.) Citation

Hervey and Hems. A Guide to Freshwater Aquarium Fishe. London New York: Hamlyn, 1973.

MLA (8th ed.) Citation

Hervey and Hems. A Guide to Freshwater Aquarium Fishe. Hamlyn, 1973.

Warning: These citations may not always be 100% accurate.