http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
hearings, Ninety-first Congress, first session, on H.R. 664 and H.R. 18086 ... April 30 and May 1, 1969
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United States. Congress. House. Committee on the District of Columbia. Subcommittee No. 4.