Kern, F., Keveren, P., Rejino, M., & Harrington, K. (1997). Piano theory workbook. Hal Leonard.
Chicago Style (17th ed.) CitationKern, Fred, Phillip Keveren, Mona Rejino, and Karen Harrington. Piano Theory Workbook. Milwaukee, Wis: Hal Leonard, 1997.
ציטוט MLAKern, Fred, et al. Piano Theory Workbook. Hal Leonard, 1997.
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