Canter, Lee. Lee Canter's assertive discipline : positive behavior management for today's classroom / Assertive discipline. Lee Canter. - 4th ed., new & rev. - Bloomington, IN : Solution Tree Press, 2010. - xi, 163 p. ; 26 cm. Includes bibliographical references and index. ISBN: 9781934009154 (perfect bound : alk. paper) 9781935249238 (library binding : alk. paper) RM137.50 Subjects--Topical Terms: School discipline.Behavior modification.Classroom management.