Harder, P. O. (1970). Basic materials in music theory: A programed course (2a. ed.). Boston: Allyn and Bacon.
Chicago Style CitationHarder, Paul O. Basic Materials in Music Theory: A Programed Course. 2a. ed. Boston: Allyn and Bacon, 1970.
MLA CitationHarder, Paul O. Basic Materials in Music Theory: A Programed Course. 2a. ed. Boston: Allyn and Bacon, 1970.
Warning: These citations may not always be 100% accurate.