Hutcherson, R. J. (1955). Group instruction in piano: An investigation of the relative effectiveness of group and individual piano instruction at beginning level.
Chicago-Zitierstil (17. Ausg.)Hutcherson, Rita Johnson. Group Instruction in Piano: An Investigation of the Relative Effectiveness of Group and Individual Piano Instruction at Beginning Level. 1955.
MLA-Zitierstil (9. Ausg.)Hutcherson, Rita Johnson. Group Instruction in Piano: An Investigation of the Relative Effectiveness of Group and Individual Piano Instruction at Beginning Level. 1955.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.