Roberts, H. H. (1933). Form in primitive music: An analytical and comparative study of the melodic form of some ancient southern California Indian songs. American Library of Musicology W. W. Norton.
Citace podle Chicago (17th ed.)Roberts, Helen Heffron. Form in Primitive Music: An Analytical and Comparative Study of the Melodic Form of Some Ancient Southern California Indian Songs. New York: American Library of Musicology W. W. Norton, 1933.
Citace podle MLA (9th ed.)Roberts, Helen Heffron. Form in Primitive Music: An Analytical and Comparative Study of the Melodic Form of Some Ancient Southern California Indian Songs. American Library of Musicology W. W. Norton, 1933.
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