Granich, L. (1940). A qualitative Analysis of concepts in mentally deficient schoolboys.
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Dyfyniad Arddull Chicago
Granich, Louis. A Qualitative Analysis of Concepts in Mentally Deficient Schoolboys. New York, 1940.
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Dyfyniad MLA
Granich, Louis. A Qualitative Analysis of Concepts in Mentally Deficient Schoolboys. 1940.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.