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Annual Report of the Geological and Agricultural Survey of Texas
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Samuel Botsford Buckley,Geological and Agricultural Survey of Texas |
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb. |
OL19801717W |
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Annual Report of the State Geologist for ...
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New Jersey Geological Survey,1863-1915 |
Book digitized by Google and uploaded to the Internet Archive by user tpb. |
OL19801750W |
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Bibliography of North American Geology for 1912: With Subject Index
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John Milton Nickles,United States Geological Survey |
Book digitized by Google and uploaded to the Internet Archive by user tpb. |
OL19802899W |