Author: Jahns, Richard H. (Richard Henry), 1915-1983 / Publisher: U.S. Geological Survey / Year: 1953 - Yale University Library GeoBlacklight Search Results

Start Over Author Jahns, Richard H. (Richard Henry), 1915-1983 Publisher U.S. Geological Survey Year 1953

1. Surficial geology of the Ayer quadrangle, Massachusetts [cartographic material]

1953. 2011-11-29T19:01:09Z. 2012-03-05T17:16:33Z. Jahns, Richard H. (Richard Henry), 1915-1983. U.S. Geological Survey. English. Public. Massachusetts, Middlesex County, and Worcester County.

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1. Surficial geology of the Ayer quadrangle, Massachusetts [cartographic material]

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