Ditchburn, R. (1963). Light. 2nd ed (2nd ed.). International Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDitchburn, R.W. Light. 2nd Ed. 2nd ed. New York: International Publishers, 1963.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDitchburn, R.W. Light. 2nd Ed. 2nd ed. International Publishers, 1963.
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