APA (7th ed.) Citation

Rollins, J. (2007). Black order: A Sigma Force novel. Harper.

Chicago Style (17th ed.) Citation

Rollins, James. Black Order: A Sigma Force Novel. New York, NY: Harper, 2007.

MLA (9th ed.) Citation

Rollins, James. Black Order: A Sigma Force Novel. Harper, 2007.

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