APA (7e ed.) Bronvermelding
Duchan, J. S. (2012). Powerful voices: The musical and social world of collegiate a cappella. University of Michigan Press.
Chicago (17e ed.) Bronvermelding
Duchan, Joshua S. Powerful Voices: The Musical and Social World of Collegiate a Cappella. Ann Arbor: University of Michigan Press, 2012.
MLA (9e ed.) Bronvermelding
Duchan, Joshua S. Powerful Voices: The Musical and Social World of Collegiate a Cappella. University of Michigan Press, 2012.
Let op: Deze citaties zijn niet altijd 100% accuraat.