Social exchange : advances in theory and research 2026-02-16T11:29:39+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Gergen, Kenneth J.; Greenberg, Martin S.; Willis, Richard Hartley, 1927- (Plenum Press, 1980)