TY - BOOK ID - 137378125 TI - Knock, knock, who's there? : want to buy a home security system? beware of home alarm sales scams. PY - 2011 PB - [Washington, D.C.] : Federal Trade Commission, DB - UniCat KW - Consumer protection KW - Burglar alarms UR - https://www.unicat.be/uniCat?func=search&query=sysid:137378125 AB - ER -