HOPPE.R
E/MJ OPERATING HAND BOOK OF MANUAL SURFACE MININGAND EXPLORATION - 2 - NEW YORK McGraw-Hill 1978 - 28X22
622.702 H798
E/MJ OPERATING HAND BOOK OF MANUAL SURFACE MININGAND EXPLORATION - 2 - NEW YORK McGraw-Hill 1978 - 28X22
622.702 H798