RT Book T1 Threats in schools: a practical guide for managing violence A1 McCann, Joseph T. LA English PP New York u.a. PB Haworth Press YR 2002 UL https://krimdok.uni-tuebingen.de/Record/1622303504 NO Includes bibliographical references (p. ) and index CN LB3013.3.M35 2001 SN 0789012952 SN 0789012960 K1 School Violence : United States : Prevention K1 Conflict Management : Study and teaching : United States