Chopra, D. (2009). Mengapa Tuhan tertawa....? Ircisod.
Chicago Style (17th ed.) CitationChopra, Deepak. Mengapa Tuhan Tertawa....? Ircisod, 2009.
MLA引文Chopra, Deepak. Mengapa Tuhan Tertawa....? Ircisod, 2009.
警告：這些引文格式不一定是100％准確.
APA引文