Geen, Russell G., 1932- Human motivation : a social psychological approach / Russell G. Geen. - xv, 347 p. : ill. ; 25 cm. ISBN: 0534238505 (acid-free) : $33.00 LCCN: 94002432 Subjects--Topical Terms: Motivation (Psychology)Incentive (Psychology)Goal (Psychology) LC Class. No.: BF503 / .G428 1995