United States. Government Accountability Office. (2007). Environmental protection: EPA-state enforcement partnership has improved, but EPA's oversight needs further enhancement : report to congressional requesters. U.S. Govt. Accountability Office.
Chicago Style (17th ed.) CitationUnited States. Government Accountability Office. Environmental Protection: EPA-state Enforcement Partnership Has Improved, but EPA's Oversight Needs Further Enhancement : Report to Congressional Requesters. [Washington, D.C.]: U.S. Govt. Accountability Office, 2007.
MLA (9th ed.) CitationUnited States. Government Accountability Office. Environmental Protection: EPA-state Enforcement Partnership Has Improved, but EPA's Oversight Needs Further Enhancement : Report to Congressional Requesters. U.S. Govt. Accountability Office, 2007.