United States. Congress. Senate. Committee on Interior and Insular Affairs & ProQuest (Firm). (1961). Providing for the addition of certain lands to the Effigy Mounds National Monument, Iowa. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Interior and Insular Affairs and ProQuest (Firm). Providing for the Addition of Certain Lands to the Effigy Mounds National Monument, Iowa. Washington: [publisher not identified], 1961.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Interior and Insular Affairs and ProQuest (Firm). Providing for the Addition of Certain Lands to the Effigy Mounds National Monument, Iowa. [publisher not identified], 1961.
Warning: These citations may not always be 100% accurate.