RT Book T1 Preventing violence to staff A1 Poyner, Barry A2 Warne, Caroline LA English PP London PB HMSO YR 1988 ED 1. publ. UL https://krimdok.uni-tuebingen.de/Record/1603598898 CN 331.7'12'0941 SN 0118854674 K1 Great Britain. Professional personnel. Violence by clients