Results: 1 - 4 of 4
Dec 31, 1977
Open File Report
… Holter, M.E. and Chu, M. (1977): Geology and coal resources of … … Open File Report 1978-13 … Geology and Coal Resources of …
Dec 31, 1975
Open File Report
… Chu, M. and Yurko, J.R. (1976): Geology and coal resources of the … … Open File Report 1976-16 … Geology and Coal Resources of the …
Dec 31, 1979
Open File Report
… J.R. … Nurkowski, J.R. (1980): Geology and coal resources of the … … Open File Report 1980-10 … Geology and Coal Resources of the …