APA (7th ed.) Citation

Gülen, F., & Çetin, M. (2012). Questions & answers about Islam. Adam Publishers & Distributors.

Chicago Style (17th ed.) Citation

Gülen, Fethullah, and Muhammed Çetin. Questions & Answers About Islam. New Delhi: Adam Publishers & Distributors, 2012.

MLA (9th ed.) Citation

Gülen, Fethullah, and Muhammed Çetin. Questions & Answers About Islam. Adam Publishers & Distributors, 2012.