APA (7th ed.) Citation

Cox, G. (2012). The rings of time (1st Pocket books pbk. ed.). Pocket Books.

Chicago Style (17th ed.) Citation

Cox, Greg. The Rings of Time. 1st Pocket books pbk. ed. New York: Pocket Books, 2012.

MLA (9th ed.) Citation

Cox, Greg. The Rings of Time. 1st Pocket books pbk. ed. Pocket Books, 2012.

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