Herrold, R. M. (1991). New approaches to elementary classroom music (2nd ed.). Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHerrold, Rebecca M. New Approaches to Elementary Classroom Music. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHerrold, Rebecca M. New Approaches to Elementary Classroom Music. 2nd ed. Prentice-Hall, 1991.
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