Müller, J. F., & Rusch, H. W. (1966). Müller - Rusch string method for class or individual instruction: Viola. Neil A. Kjos Music Company, Publisher.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMüller, J. Frederick, और Harold W. Rusch. Müller - Rusch String Method for Class or Individual Instruction: Viola. San Diego, CA: Neil A. Kjos Music Company, Publisher, 1966.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMüller, J. Frederick, और Harold W. Rusch. Müller - Rusch String Method for Class or Individual Instruction: Viola. Neil A. Kjos Music Company, Publisher, 1966.
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