(Q57844226)
English
Bedrock geology of the Nashua River area, Massachusetts-New Hampshire; supplement to USGS Miscellaneous Field Studies Map MF-957 (Bedrock geologic map of the Pepperell, Shirley, Townsend quadrangles, and part of the Ayer Quadrangle, Massachusetts and
scholarly article by Gilpin R. Robinson published in January 1981
Statements
Bedrock geology of the Nashua River area, Massachusetts-New Hampshire; supplement to USGS Miscellaneous Field Studies Map MF-957 (Bedrock geologic map of the Pepperell, Shirley, Townsend quadrangles, and part of the Ayer Quadrangle, Massachusetts and (English)
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1981
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