TY - BOOK ID - 137154721 TI - Purchase cards : control weaknesses leave DHS highly vulnerable to fraudulent, improper, and abusive activity : testimony before the Senate Homeland Security and Governmental Affairs Committee AU - Kutz, Gregory D. AU - Ryan, John J. AU - United States. PY - 2006 PB - [Washington, D.C.] : U.S. Government Accountability Office, DB - UniCat KW - Government purchase cards KW - United States. KW - Rules and practice. UR - https://www.unicat.be/uniCat?func=search&query=sysid:137154721 AB - ER -