APA (7 वां संस्करण) प्रशस्ति पत्र
Olson, M. (2010). The solo singer in the choral setting: A handbook for achieving vocal health. Scarecrow Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Olson, Margaret. The Solo Singer in the Choral Setting: A Handbook for Achieving Vocal Health. Lanham, Md.: Scarecrow Press, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Olson, Margaret. The Solo Singer in the Choral Setting: A Handbook for Achieving Vocal Health. Scarecrow Press, 2010.
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