ID:DA16936609
Burchard, E. F. (Ernest Francis)
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F. L. Ransome, G. R. Mansfield, and E. F. Burchard
Government Printing Office 1921 Bulletin / Department of the Interior, United States Geological Survey 715 . Contributions to economic geology (short papers and preliminary reports) ; 1920, pt. 1
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by Ernest F. Burchard and Charles Butts . by Edwin C. Eckel
U.S. Government Printing Office 1910 Bulletin / Department of the Interior, United States Geological Survey 400
: pbk
[by Ulysses S. Grant and Ernest F. Burchard]
U.S. Geological Survey 1907 Geologic atlas of the United States no. 145
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