Evans, R. (1992). How to play keyboards (1st U.S. ed.). St. Martin's Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEvans, Roger. How to Play Keyboards. 1st U.S. ed. New York: St. Martin's Press, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEvans, Roger. How to Play Keyboards. 1st U.S. ed. St. Martin's Press, 1992.
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