APA (7th ed.) Citation

Flannery, T. F., & Schouten, P. (2001). A gap in nature: Discovering the world's extinct animals (First American edition.). Atlantic Monthly Press.

Chicago Style (17th ed.) Citation

Flannery, Tim F., and Peter Schouten. A Gap in Nature: Discovering the World's Extinct Animals. First American edition. New York: Atlantic Monthly Press, 2001.

MLA (9th ed.) Citation

Flannery, Tim F., and Peter Schouten. A Gap in Nature: Discovering the World's Extinct Animals. First American edition. Atlantic Monthly Press, 2001.