Library of Congress. Congressional Research Service & ProQuest (Firm). (2009). Safeguarding the Nation's Drinking Water: EPA and Congressional Actions. [publisher not identified].
Chicago Style (17th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Safeguarding the Nation's Drinking Water: EPA and Congressional Actions. [Place of publication not identified]: [publisher not identified], 2009.
MLA (9th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Safeguarding the Nation's Drinking Water: EPA and Congressional Actions. [publisher not identified], 2009.
Warning: These citations may not always be 100% accurate.