Investigation and laboratory testing of vermiculite deposits, Llano County, Tex. / by W.D. McMillan and A.W. Gerhardt.
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| Format: | Government Document Book |
| Language: | English |
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[Washington, D.C.?] :
U.S. Dept. of the Interior, Bureau of Mines,
1949.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
4486. |
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| Physical Description: | 42 pages : maps ; 25 cm. |
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