Putnam, R. D., Campbell, D. E., & Garrett, S. R. (2010). American grace: How religion divides and unites us (1st Simon & Schuster hardcover ed.). Simon & Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPutnam, Robert D., David E. Campbell, और Shaylyn Romney Garrett. American Grace: How Religion Divides and Unites Us. 1st Simon & Schuster hardcover ed. New York: Simon & Schuster, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPutnam, Robert D., et al. American Grace: How Religion Divides and Unites Us. 1st Simon & Schuster hardcover ed. Simon & Schuster, 2010.
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