APA (7th ed.) Citation

Krogh, D. (2004). Biology: A guide to the natural world (2nd ed.; custom core ed.). Pearson/Prentice Hall.

Chicago Style (17th ed.) Citation

Krogh, David. Biology: A Guide to the Natural World. 2nd ed.; custom core ed. Upper Saddle River, New Jersey: Pearson/Prentice Hall, 2004.

MLA (9th ed.) Citation

Krogh, David. Biology: A Guide to the Natural World. 2nd ed.; custom core ed. Pearson/Prentice Hall, 2004.