Library of Congress. Congressional Research Service & ProQuest (Firm). (1985). Groundwater: What it Is, and How it Is Being Protected. [publisher not identified].
Chicago Style (17th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Groundwater: What It Is, and How It Is Being Protected. [Place of publication not identified]: [publisher not identified], 1985.
MLA (9th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Groundwater: What It Is, and How It Is Being Protected. [publisher not identified], 1985.
Warning: These citations may not always be 100% accurate.