Não informado. (1972). School psychology digest. National Association of School Psychologists.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. School Psychology Digest. Cuyahoga Falls, Ohio: National Association of School Psychologists, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. School Psychology Digest. National Association of School Psychologists, 1972.
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