Citazione Stile APA (7a Edizione)

Crow, R., & Keeley, D. (1999). A practical guide to tropical aquarium fish. Bramley Books.

Citazione stile Chigago Style (17a edizione)

Crow, Richard, e Dave Keeley. A Practical Guide to Tropical Aquarium Fish. Surrey: Bramley Books, 1999.

Citatione MLA (9a ed.)

Crow, Richard, e Dave Keeley. A Practical Guide to Tropical Aquarium Fish. Bramley Books, 1999.