共 50 条
- [44] The Case of Bituminous Coal ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE, 1926, 127 (216): : 196 - 197
- [45] ILLINOIS COAL - A MAJOR BITUMINOUS COAL RESOURCE AAPG BULLETIN-AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS, 1980, 64 (08): : 1289 - 1289
- [46] Cleaning bituminous coal TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1930, 88 : 305 - 335
- [50] Resins in coal. Studies in the composition of coal. JOURNAL OF THE CHEMICAL SOCIETY, 1926, : 1410 - U9