West, J. Y. (1937). The technique for appraising certain observable behavior of children in science in elementary schools. Teachers College, Columbia University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWest, Joe Young. The Technique for Appraising Certain Observable Behavior of Children in Science in Elementary Schools. New York, New York: Teachers College, Columbia University, 1937.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWest, Joe Young. The Technique for Appraising Certain Observable Behavior of Children in Science in Elementary Schools. Teachers College, Columbia University, 1937.
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