Canter, Lee. Assertive discipline : a take charge approach for today's educator / Lee Canter and Marlene Canter. - Santa Monica, CA : Canter and Associates, 1989, c1976. - 191 p. ; 21 cm. + Follow up guide. ISBN: 0960897801 Subjects--Topical Terms: Classroom management. Dewey Class. No.: 371.102/ / CAN