共 50 条
- [1] THREE POTENTIAL LONGWALL MINING METHODS FOR THICK COAL SEAMS IN THE WESTERN UNITED STATES. Information Circular - United States, Bureau of Mines, 1979, (8792):
- [2] Modern progress in mining and metallurgy in the western United States. TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1909, 40 : 543 - 561
- [3] LAND RECLAMATION AFTER STRIP COAL MINING IN THE UNITED STATES. Mining Magazine, 1985, 153 (03): : 211 - 213
- [6] The coal supplies and coal production of the United States. QUARTERLY PUBLICATIONS OF THE AMERICAN STATISTICAL ASSOCIATION, 1912, 13 : 139 - 156
- [7] The coal-fields of the United States. TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1909, 40 : 253 - 260
- [10] The geographical distribution of mining development in the United States. TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1913, 45 : 137 - 146