APA (7th ed.) Citation

Kolbert, E. (2015). The sixth extinction: An unnatural history. Bloomsbury.

Chicago Style (17th ed.) Citation

Kolbert, Elizabeth. The Sixth Extinction: An Unnatural History. London [u.a.]: Bloomsbury, 2015.

MLA (9th ed.) Citation

Kolbert, Elizabeth. The Sixth Extinction: An Unnatural History. Bloomsbury, 2015.

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