Cognitive and motivational aspects of action : XXIInd International Congress of Psychology, Leipzig GDR July 6-12, 1980/ edited by Winfried Hacker, Walter Volpert and Mario von Cranach - Amsterdam : North-Holland, 1982 - 173 p. : ill. ; 24 cm. Includes bibliographies ISBN: 0444863486 Subjects--Topical Terms: Cognition