Coal mine structures /
Farmer, I. W.
Coal mine structures / Ian Farmer - London : Chapman & Hall, 1985 - 310 p. : ill. ; 24 cm.
Includes index
Bibliography : p. 288-302
0412250306
84-7725
Coal mines and mining
Ground control (Mining)
Coal mine structures / Ian Farmer - London : Chapman & Hall, 1985 - 310 p. : ill. ; 24 cm.
Includes index
Bibliography : p. 288-302
0412250306
84-7725
Coal mines and mining
Ground control (Mining)
