http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
National Park Service concession operations
hearings before the Subcommittee on Energy and Environment of the Committee on Small Business, House of Representatives, Ninety-fourth Congress, second session ... December 9, 1976
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United States. Congress. House. Committee on Small Business. Subcommittee on Energy and Environment.