Cita APA (7a ed.)

Duchan, J. S. (2012). Powerful Voices: The Musical and Social World of Collegiate A Cappella. University of Michigan Press.

Cita Chicago Style (17a ed.)

Duchan, Joshua S. Powerful Voices: The Musical and Social World of Collegiate A Cappella. Ann Arbor: University of Michigan Press, 2012.

Cita MLA (8a ed.)

Duchan, Joshua S. Powerful Voices: The Musical and Social World of Collegiate A Cappella. University of Michigan Press, 2012.