Geologic map of the Mount Grace quadrangle, Massachusetts bedrock geology

Geological Survey (U.S.) Jarvis B Hadley (Jarvis Bardwell) 1909-; Massachusetts. Dept. of Public Works

Washington, D.C Dept. of the Interior, U.S. Geological Survey 1949

Localização: IGC - Instituto de Geociências    (MP M4-213 )(Acessar)