Levinson, D. T. (2010). Everyone helps, everyone wins: How absolutely anyone can pitch in, help out, give back, and make the world a better place. Hudson Street Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLevinson, David T. Everyone Helps, Everyone Wins: How Absolutely Anyone Can Pitch in, Help Out, Give Back, and Make the World a Better Place. New York: Hudson Street Press, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLevinson, David T. Everyone Helps, Everyone Wins: How Absolutely Anyone Can Pitch in, Help Out, Give Back, and Make the World a Better Place. Hudson Street Press, 2010.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.