Spencer, C. C. (1881). A rudimentary and practical treatise on music. Crosby Locwood.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpencer, Charles Child. A Rudimentary and Practical Treatise on Music. London: Crosby Locwood, 1881.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSpencer, Charles Child. A Rudimentary and Practical Treatise on Music. Crosby Locwood, 1881.
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