Results for “Frank Darwyn Spencer”
7 books found
Books
Coal geology and coal, oil, and gas resources of the Erie and Frederick Quadrangles, Boulder and Weld Counties, Colorado
Coal geology and coal, oil, and gas resources of the Erie and Frederick Quadrangles, Boulder and Weld Counties, Colorado
Frank Darwyn Spencer
1986
Coal resources of Indiana
Coal resources of Indiana
Frank Darwyn Spencer
1953
Coal resources of the Philippines
Coal resources of the Philippines
Frank Darwyn Spencer
1957
Coal resources of Colorado
Coal resources of Colorado
Frank Darwyn Spencer
1953
Geologic map of the Anawalt quadrangle, West Virginia-Virginia
Geologic map of the Anawalt quadrangle, West Virginia-Virginia
Virgil A. Trent
1990
Geophysical and lithologic logs of nine test holes drilled during 1980 in the Como West, Elmo, and T.E. Ranch quadrangles, Carbon County, Wyoming
Geophysical and lithologic logs of nine test holes drilled during 1980 in the Como West, Elmo, and T.E. Ranch quadrangles, Carbon County, Wyoming
Dan E. Hansen
1981
Geology and coal resources of Bislig-Lingig region, Surigao
Geology and coal resources of Bislig-Lingig region, Surigao
José F. Vergara
1957