1963. 2012-09-24T18:36:40Z. 2013-03-18T22:19:42Z. Cushman, R. V. (Robert Vittum), 1916-. U.S. Dept. of the Interior, Geological Survey. English. Public. Connecticut, Hartford County, and Tolland County.
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1952. 2012-08-22T19:32:11Z. 2021-09-03T21:33:21Z. U.S. Dept. of the Interior, Geological Survey. English. Public. Connecticut, New London County (Conn.), and Middlesex County (Conn.).
1965. 2011-12-19T15:50:47Z. 2012-03-05T17:26:04Z. Colton, Roger B. (Roger Burnham), 1924-. U.S. Dept. of the Interior, Geological Survey. English. Public. Connecticut, Hartford County, Tolland County, Manchester Region, and Manchester Region (Conn.).