ebrary, Inc, Noll, M. A., & Blumhofer, E. W. (2006). Sing them over again to me: Hymns and hymnbooks in America. University of Alabama Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc, Mark A. Noll, और Edith Waldvogel Blumhofer. Sing Them over Again to Me: Hymns and Hymnbooks in America. Tuscaloosa: University of Alabama Press, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc, et al. Sing Them over Again to Me: Hymns and Hymnbooks in America. University of Alabama Press, 2006.
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