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