APA (7th ed.) Citation

Bourne, J. L. (2009). Day by day armageddon (1st Pocket books trade pbk. ed.). Pocket Books.

Chicago Style (17th ed.) Citation

Bourne, J. L. Day by Day Armageddon. 1st Pocket books trade pbk. ed. New York: Pocket Books, 2009.

MLA (8th ed.) Citation

Bourne, J. L. Day by Day Armageddon. 1st Pocket books trade pbk. ed. Pocket Books, 2009.

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