APA (7 वां संस्करण) प्रशस्ति पत्र
Fisk, C. (2001). Returning cycles: Contexts for the interpretation of Schubert's impromptus and last sonatas. University of California Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Fisk, Charles. Returning Cycles: Contexts for the Interpretation of Schubert's Impromptus and Last Sonatas. Berkeley: University of California Press, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Fisk, Charles. Returning Cycles: Contexts for the Interpretation of Schubert's Impromptus and Last Sonatas. University of California Press, 2001.
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