Herfurth, C. P. (1933). A tune a day: The theacher's manual for violin instruction in group, public school classes or individual lessons. Boston Music.
Citace podle Chicago (17th ed.)Herfurth, C. Paul. A Tune a Day: The Theacher's Manual for Violin Instruction in Group, Public School Classes or Individual Lessons. Boston: Boston Music, 1933.
Citace podle MLA (9th ed.)Herfurth, C. Paul. A Tune a Day: The Theacher's Manual for Violin Instruction in Group, Public School Classes or Individual Lessons. Boston Music, 1933.
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