Nettl, B. (1962). An introduction to folk music in the united states. New York: Wayne State University Press.
Παραπομπή Chicago StyleNettl, Bruno. An Introduction to Folk Music in the United States. New York: Wayne State University Press, 1962.
Παραπομπή MLANettl, Bruno. An Introduction to Folk Music in the United States. New York: Wayne State University Press, 1962.
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