Kraft, L. (1976). Gradus - Book II An integrated approach to harmony, counterpoint, and analysis. W. W. Norton & Company Inc.
Chicago-referens (17:e uppl.)Kraft, Leo. Gradus - Book II An Integrated Approach to Harmony, Counterpoint, and Analysis. W. W. Norton & Company Inc, 1976.
MLA-referens (8:e uppl.)Kraft, Leo. Gradus - Book II An Integrated Approach to Harmony, Counterpoint, and Analysis. W. W. Norton & Company Inc, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.