1975. 2012-05-03T15:55:10Z. 2012-05-09T14:06:25Z. Nelson, Arthur E. (Arthur Edward), 1922-. The Survey. English. Public. Massachusetts, Worcester County, and Middlesex County.
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2011. 2012-05-01T16:46:37Z. 2013-03-18T22:02:19Z. Walsh, Gregory J. U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services. English. Public. Massachusetts and Worcester County.
1977. 2014-01-23T21:26:10Z. 2014-02-04T23:15:50Z. Volckmann, Richard P. The Survey. English. Public. Massachusetts, Middlesex County, Norfolk County, Worcester County, and U.S.
1977. 2012-05-31T20:23:15Z. 2012-06-07T16:56:09Z. Pomeroy, John S., 1929-. The Survey. English. Public. Massachusetts, Worcester County, Hampden County, and Hampshire County.
1949. 2011-11-28T20:27:46Z. 2018-09-05T20:41:44Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Massachusetts, Franklin County, Worcester County, and U.S.
1966. 2012-01-17T15:56:25Z. 2022-07-15T21:37:57Z. Koteff, Carl. The Survey. English. Public. Massachusetts and Worcester County.
1974. 2012-04-24T19:29:56Z. 2012-05-03T15:41:34Z. Nelson, Arthur E. (Arthur Edward), 1922-. U.S. Geological Survey. English. Public. Massachusetts, Middlesex County, and Worcester County.
1975. 2012-04-27T14:24:14Z. 2012-05-03T15:42:21Z. Volckmann, Richard P. U.S. Geological Survey. English. Public. Massachusetts, Middlesex County, Norfolk County, and Worcester County.
1969. 2012-02-22T19:53:45Z. 2012-02-22T19:55:30Z. Shaw, Charles Ernest, 1932-. The Survey. English. Public. Massachusetts and Worcester County.
1977. 2012-05-31T20:19:38Z. 2012-06-07T16:56:09Z. Pomeroy, John S., 1929-. The Survey. English. Public. Massachusetts, Worcester County, Hampden County, and Hampshire County.