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1Published 1986Government Document Map
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2Published 1989Government Document Map
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3Published 1984“...Sherbrooke-Lewiston area, Maine, New Hampshire, and Vermont, geologic map...”
Government Document Microform Map -
4Published 1995“...Geologic map of the Sherbrooke Lewiston area, Maine, New Hampshire, and Vermont, United States...”
Government Document Map -
5Published 1985“...Lewiston and Sherbrooke quadrangles, Maine, New Hampshire, Vermont, preliminary aeromagnetic map....”
Government Document Microform Map -
6Published 1984Government Document Microform Map
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7