Author: Tobisch, Othmar T. (Othmar Tardin), 1932- - Yale University Library GeoBlacklight Search Results

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1. Geologic map of the Milton quadrangle, Virginia-North Carolina and adjacent areas of Virginia

1972. 2012-11-09T20:47:59Z. 2012-11-09T20:47:59Z. Tobisch, Othmar T. (Othmar Tardin), 1932-. U.S. Geological Survey. English. Public. Virginia, Halifax County, North Carolina, Caswell County, and Person County.

2. Geologic map of the San Sebastián quadrangle, Puerto Rico [cartographic material]

1971. 2012-11-07T20:55:27Z. 2013-03-18T22:26:57Z. Tobisch, Othmar T. (Othmar Tardin), 1932-. The Survey. English. Public. Puerto Rico.

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