20160731 frey50
Coal age operating handbook of coal surface mining and reclamation / - New York McGraw-Hill, Inc. 1978 - vi, 442 p. - Coal age library of operating handbooks Vol. 2 .
070114587
coal - handbook- mining
622.2 Coa 12
Coal age operating handbook of coal surface mining and reclamation / - New York McGraw-Hill, Inc. 1978 - vi, 442 p. - Coal age library of operating handbooks Vol. 2 .
070114587
coal - handbook- mining
622.2 Coa 12