1948. 2012-08-07T14:01:39Z. 2013-03-18T20:16:32Z. Alcock, Frederick James, 1888-. Geological Survey of Canada. English. Public. New Brunswick, Campobello Island Region, and Deer Island Region.
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1948. 2012-08-10T18:22:29Z. 2013-03-18T22:11:11Z. Geological Survey of Canada. Geological Survey of Canada. English. Public. Québec, Dudswell Junction Region, and Windsor Region.
1948. 2012-08-10T17:46:12Z. 2013-03-18T22:11:10Z. Geological Survey of Canada. Geological Survey of Canada. English. Public. Manitoba, File Lake Region, and Squall Lake Region.
1948. 2018-05-01T19:21:32Z. 2018-05-01T19:21:32Z. Lamborn, Raymond E. (Raymond Ellwood), 1890-. Geological Survey of Ohio. English. cartographic image. Public. Ohio, Coshocton County, Coshocton County (Ohio), and Coshocton County.
1948. 2018-05-01T19:19:53Z. 2018-05-01T19:19:53Z. Flint, Norman K. (Norman Keith), 1921-. The Survey. English. cartographic image. Public. Ohio, Perry County, and Perry County.
1948. 2009-04-15T20:17:17Z. 2021-10-01T21:33:25Z. Geological Survey of Canada. Dept. of Mines and Resources, Mines, Forests and Scientific Services Branch, Geological Survey of Canada. English. Public. British Columbia.
1948. 2008-06-30T13:33:21Z. 2011-03-28T23:21:46Z. Malaya. Survey Dept. Survey Dept. English. Public. Malaya.
1948. 2012-11-15T17:10:57Z. 2015-10-21T15:15:13Z. Malaya. Geological Survey Dept. Geological Survey Dept., Federation of Malaya. English. Public. Malaysia and Chegar Perah (Pahang).
1948. 2012-08-07T13:58:43Z. 2013-03-18T22:10:01Z. Alcock, Frederick James, 1888-. Geological Survey of Canada. English. Public. New Brunswick and Grand Manan Island.
1948. 2012-08-10T17:56:08Z. 2013-03-18T22:11:10Z. Canada. Bureau of Geology and Topography. Dept. of Mines and Resources. English. Public. Rocky Mountains, Canada., and Canada, Western.