TY - BOOK AU - Levin,James AU - TI - Principles of classroom management: a hierarchical approach SN - 0136911714 AV - LB3013 .L47 1991 PY - 1991/// CY - New Jersey PB - Prentice Hall KW - Classroom management KW - United States KW - Problems, exercises,etc KW - Local KW - Teaching KW - Problems, exercises, etc N1 - Includes bibliograpical references and index ER -