Não informado. (1941). Educational and Psychological Measurement. Educational and Psychological Measurement.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Educational and Psychological Measurement. Durham, NC: Educational and Psychological Measurement, 1941.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Educational and Psychological Measurement. Educational and Psychological Measurement, 1941.
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