At head of title: Department of agriculture, statistics and history ...Mode of access: Internet
At head of title: Department of the Interior. Census Office."The bibliography of bitumen and its rel...
At head of title: United States Dept. of the interior, Harold L. Ickes, secretary. Bureau of mines, ...
"DOE/EIA-0121."Mode of access: Internet.Includes information previously presented in: Weekly coal pr...
At head of title : Department of Agriculture, Insurance, Statistics and History, Geological Survey o...
At head of title: Department of agriculture, insurance, statistics and history...Cover-title.Mode of...
"Report on soils, water supply, and irrigation of the Colorado coal field," by R. A. Thompson: p. 44...
At headf of title: United States Dept. of the Interior ... Bureau of Mines."Publications in the surv...
Reprinted from the Proceedings of the Society of Chemical Industry of Victoria, August- November, 19...
At head of title: The School of mines. University of Wyoming, Laramie, Wyoming.Mode of access: Inter...
At head of title: United States Dept. of the interior, Harold L. Ickes, secretary. Bureau of mines, ...
At head of title: United States Department of the Interior. Harold L. Ickes, Secretary; Bureau of Mi...
Abstract from: "Mineral resources of the United States."At head of title: Department of the Interior...
Mode of access: Internet.Continued by: Coal liquefaction, ISSN 0362-7934, issued by: United States. ...
At head of title: Department of the Interior. Bureau of Mines, Joseph A. Holmes, director.Cover titl...
Extract from the 16th annual report of the U.S. Geological survey, 1894-95, pt. 4, p.1-217.Mode of a...
At head of title: Department of the Interior. Census Office."The bibliography of bitumen and its rel...
At head of title: United States Dept. of the interior, Harold L. Ickes, secretary. Bureau of mines, ...
"DOE/EIA-0121."Mode of access: Internet.Includes information previously presented in: Weekly coal pr...
At head of title : Department of Agriculture, Insurance, Statistics and History, Geological Survey o...
At head of title: Department of agriculture, insurance, statistics and history...Cover-title.Mode of...
"Report on soils, water supply, and irrigation of the Colorado coal field," by R. A. Thompson: p. 44...
At headf of title: United States Dept. of the Interior ... Bureau of Mines."Publications in the surv...
Reprinted from the Proceedings of the Society of Chemical Industry of Victoria, August- November, 19...
At head of title: The School of mines. University of Wyoming, Laramie, Wyoming.Mode of access: Inter...
At head of title: United States Dept. of the interior, Harold L. Ickes, secretary. Bureau of mines, ...
At head of title: United States Department of the Interior. Harold L. Ickes, Secretary; Bureau of Mi...
Abstract from: "Mineral resources of the United States."At head of title: Department of the Interior...
Mode of access: Internet.Continued by: Coal liquefaction, ISSN 0362-7934, issued by: United States. ...
At head of title: Department of the Interior. Bureau of Mines, Joseph A. Holmes, director.Cover titl...
Extract from the 16th annual report of the U.S. Geological survey, 1894-95, pt. 4, p.1-217.Mode of a...
At head of title: Department of the Interior. Census Office."The bibliography of bitumen and its rel...
At head of title: United States Dept. of the interior, Harold L. Ickes, secretary. Bureau of mines, ...
"DOE/EIA-0121."Mode of access: Internet.Includes information previously presented in: Weekly coal pr...