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2. Nigeria
1979. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. United States. Central Intelligence Agency. Central Intelligence Agency. English. Public. Nigeria. 1970- .
3. Nigeria
1979. 2003-10-23T18:55:05Z. 2015-10-27T22:20:53Z. United States. Central Intelligence Agency. The Agency. English. Public. Nigeria. 1970-.
1979. 2013-06-13T13:48:52Z. 2013-06-26T19:51:05Z. Marr, John W. (John Winton), 1914-. U.S. Geological Survey. English. Public. Colorado, Douglas County, El Paso County, and Elbert County.
1979. 2013-05-30T20:12:36Z. 2013-06-14T17:58:36Z. Marr, John W. (John Winton), 1914-. U.S. Geological Survey. English. Public. Colorado and Denver Metropolitan Area.
1979. 2014-07-02T20:24:43Z. 2014-07-02T20:24:43Z. Butler, John Robert, 1930-. The Survey. English. Public. Uinta Basin (Utah and Colo.), United States, and Uinta Basin.