Media type: Book Title: Intrinsic and extrinsic motivation : the search for optimal motivation and performance Contributor: Sansone, Carol [Hrsg.] imprint: San Diego [u.a.]: Academic Press, 2005 Published in: Educational psychology series Issue: [Repr.] Extent: XIX, 489 S.; graph. Darst Language: English ISBN: 0126190704; 9780126190700 RVK notation: CP 3100 : Motivation und Handlung Keywords: Motivation Origination: Footnote: