Cita APA (7th ed.)

Brown, E. E., & Gratzek, J. B. (1980). Fish farming handbook: Food, bait, tropical and goldfish. Van Nostrand Reinhold.

Cita Chicago (17th ed.)

Brown, E. Evan, i John B. Gratzek. Fish Farming Handbook: Food, Bait, Tropical and Goldfish. New York: Van Nostrand Reinhold, 1980.

Cita MLA (9th ed.)

Brown, E. Evan, i John B. Gratzek. Fish Farming Handbook: Food, Bait, Tropical and Goldfish. Van Nostrand Reinhold, 1980.