APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

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