APA (7th ed.) Citation

Krogh, D. (2002). Biology: A guide to the natural world (2nd ediotion.). Prentice Hall.

Chicago Style (17th ed.) Citation

Krogh, David. Biology: A Guide to the Natural World. 2nd ediotion. Upper Saddle River, N.J: Prentice Hall, 2002.

MLA (9th ed.) Citation

Krogh, David. Biology: A Guide to the Natural World. 2nd ediotion. Prentice Hall, 2002.