Coal mining technology : theory and practice /
Stefanko, Robert.
Coal mining technology : theory and practice / by Robert Stefanko ; editor Christopher J. Bise. - New York : Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers, 1983. - xiv, 410 p . : ill.
0895204045
91024045
Coal mines and mining.
Mining engineering.
Coal mining technology : theory and practice / by Robert Stefanko ; editor Christopher J. Bise. - New York : Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers, 1983. - xiv, 410 p . : ill.
0895204045
91024045
Coal mines and mining.
Mining engineering.