Whistler, H. S., & Hummel, H. A. (1954). First etude album for violin. Rubank.
Chicago Style aipamenaWhistler, Harvey S., and Herman A. Hummel. First Etude Album for Violin. Chicago, IL: Rubank, 1954.
MLA aipamenaWhistler, Harvey S., and Herman A. Hummel. First Etude Album for Violin. Rubank, 1954.
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