APA (7th ed.) Citation

Kolbert, E. (2014). The sixth extinction: : an unnatural history. Henry Holt and Company.

Chicago Style (17th ed.) Citation

Kolbert, Elizabeth. The Sixth Extinction: : An Unnatural History. New York: Henry Holt and Company, 2014.

MLA (9th ed.) Citation

Kolbert, Elizabeth. The Sixth Extinction: : An Unnatural History. Henry Holt and Company, 2014.

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