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Complex Tasks for Use in Human Problem-Solving Research
Author(s): Ray, Wilbert S.Date of Publication: 1955-11
Report number: AFPTRC TN 55-43
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Verbal Compared with Manipulative Solution of an Apparatus-Problem
Author(s): Ray, Wilbert S.Date of Publication: 1957-08
Report number: AFPTRC TN 57-117