APA (7th ed.) Citation

Rollins, J. (2014). The 6th extinction: A Sigma Force novel (First edition.). William Morrow.

Chicago Style (17th ed.) Citation

Rollins, James. The 6th Extinction: A Sigma Force Novel. First edition. New York: William Morrow, 2014.

MLA (9th ed.) Citation

Rollins, James. The 6th Extinction: A Sigma Force Novel. First edition. William Morrow, 2014.