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(Maine Geological Survey), Maine Development Commission, 160 p.
Maine Geological Survey
Trefethen, Joseph M., 1951, Report of the State Geologist, 1949-1950: (Maine Geological Survey), Maine Development Commission, 160 p., 160 p. report, 13 maps. Maine Geological Survey Publications. 560. https://digitalmaine.com/mgs_publications/560
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