APA Citation

Krogh. (2009). Biology: A guide to the natural world (4th ed.). New Jersey: Prentice Hall.

Chicago Style Citation

Krogh. Biology: A Guide to the Natural World. 4th ed. New Jersey: Prentice Hall, 2009.

MLA Citation

Krogh. Biology: A Guide to the Natural World. 4th ed. New Jersey: Prentice Hall, 2009.

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