Clark, Ron The essential 55 : an award-winning educator's rules for discovering the successful student in every child / Ron Clark - New York : Hyperion, 2003 - xiii, 192 p. ISBN: 1401300014 Subjects--Topical Terms: Enseñanza.PedagogíaTeaching. LC Class. No.: LB 1025.3 / C592e 2003 Dewey Class. No.: 371.102