Burchard, Ernest Francis
[Other];
Loughlin, G.F
[Other];
Reeves, Frank
[Other];
Ross, Clyde Polhemus
[Other]
;
United States Congress House,
United States Geological Survey
Contributions to economic geology. (Short papers and preliminary reports). 1930. Part I. Metals and nonmetals except fuels. G.F. Loughlin and E.F. Burchard, geologists in charge. [U.S. Geological Survey Bulletin 821.]
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Title:
Contributions to economic geology. (Short papers and preliminary reports). 1930. Part I. Metals and nonmetals except fuels. G.F. Loughlin and E.F. Burchard, geologists in charge. [U.S. Geological Survey Bulletin 821.]