Gagné, Robert M. Essentials of learning for instruction / Robert M. Gagné - Expanded Edition - California : Dryden Press, 1974 - 204 p. ; - Principles of Educational Psychology Series . Subjects--Topical Terms: APRENDIZAJEAUTOEVALUACIONENSEÑANZAPSICOLOGIA DEL APRENDIZAJE Dewey Class. No.: 153.15 / G136