TY - BOOK AU - Powell,S ED - BILD ED - British Institute of Learning Disabilities TI - Risk in challenging behaviour : : a good practice guide for professionals / SN - 1904082955 PY - 2005/// CY - Kidderminster : PB - BILD KW - Behaviour KW - Learning disabilities KW - Mental handicap KW - Ethics KW - Restraint, physical ER -