Não informado. (1941). Educational and Psychological Measurement. Educational and Psychological Measurement.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Educational and Psychological Measurement. Durham, NC: Educational and Psychological Measurement, 1941.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Educational and Psychological Measurement. Educational and Psychological Measurement, 1941.
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