Bedny, Gregory The Russian theory of activity : current applications to design and learning Gregory Bedny, David Meister - Philadelphia Psychology Press 1997 - xxi, 430 p. : ill. ; 24 cm Includes bibliographical references (p. 405-420) and indexes ISBN: 9780805817713 ISSN: 97012608 Subjects--Topical Terms: Human engineeringHuman-machine systems Dewey Class. No.: 620.82 BED