Hickok, R. (1975). Study guide and workbook to accompany music appreciation (2nd ed.). Addison-Wesley.
Chicago-referens (17:e uppl.)Hickok, Robert. Study Guide and Workbook to Accompany Music Appreciation. 2nd ed. Reading, Mass: Addison-Wesley, 1975.
MLA-referens (9:e uppl.)Hickok, Robert. Study Guide and Workbook to Accompany Music Appreciation. 2nd ed. Addison-Wesley, 1975.
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