Library of Congress. Congressional Research Service & ProQuest (Firm). (2004). Metropolitan Area Designations by OMB: History, Current Definitions, and Uses. [publisher not identified].
Chicago Style (17th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Metropolitan Area Designations by OMB: History, Current Definitions, and Uses. [Place of publication not identified]: [publisher not identified], 2004.
MLA (9th ed.) CitationLibrary of Congress. Congressional Research Service and ProQuest (Firm). Metropolitan Area Designations by OMB: History, Current Definitions, and Uses. [publisher not identified], 2004.
Warning: These citations may not always be 100% accurate.