Emmer, Edmund T. Classroom management for secondary teachers / Edmund T. Emmer, Carolyn M. Everston, Murray E. Worsham. - 6th ed. - Boston : Allyn and Bacon, c2003. - xiv, 239 p. : ill. ; 23 cm. References : p. 230 - 234. Includes index. ISBN: 0205349951 Subjects--Topical Terms: Classroom managementEducation, Secondary LC Class. No.: LB3013 / Em6 2003