Chopra, D. (2009). The ultimate happiness prescription: 7 keys to joy and enlightenment. Random House Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChopra, Deepak. The Ultimate Happiness Prescription: 7 Keys to Joy and Enlightenment. [New York, N.Y.]: Random House Audio, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रChopra, Deepak. The Ultimate Happiness Prescription: 7 Keys to Joy and Enlightenment. Random House Audio, 2009.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.