Hiley, D. (2009). Gregorian chant. Cambridge University Press.
Chicago Style (17th ed.) CitationHiley, David. Gregorian Chant. Cambridge, UK ; New York: Cambridge University Press, 2009.
MLA (8th ed.) CitationHiley, David. Gregorian Chant. Cambridge University Press, 2009.
Warning: These citations may not always be 100% accurate.