Monroe, P. (1914). Principles of secondary education: Written by a number of specialists. Macmillan Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMonroe, Paul. Principles of Secondary Education: Written by a Number of Specialists. New York, New York: Macmillan Company, 1914.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMonroe, Paul. Principles of Secondary Education: Written by a Number of Specialists. Macmillan Company, 1914.
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