|
I 28.27:8686
|
Noise control : proceedings : Bureau of Mines Technology Transfer Seminar, Pittsburgh, Pa., January 22, 1975 |
1 |
|
I 28.27:8687
|
Building stoppings in mines with large openings |
1 |
|
I 28.27:8689
|
Basic estimated capital investment and operating costs for underground bituminous coal mines : mines with annual production of 1.03 to 3.09 million tons from a 48-inch coalbed : revision of Information circular 8641 |
1 |
|
I 28.27:8692
|
Geothermal energy: economic potential of three sites in Alaska |
1 |
|
I 28.27:8694
|
Mine power distribution : proceedings, Bureau of Mines Technology Transfer Seminar, Pittsburgh, Pa., March 19, 1975 |
1 |
|
I 28.27:8696
|
A Fortran routine reorganizer |
1 |
|
I 28.27:8697
|
Construction-mineral aggregate availability in the Baltimore, Md., metropolitan area |
1 |
|
I 28.27:8698
|
Energy consumption in domestic primary copper production |
1 |
|
I 28.27:8699
|
Economic evaluation of a process for ferric chloride leaching of chalcopyrite concentrate |
1 |
|
I 28.27:8700
|
Uranium from the Chattanooga shale : some problems involved in development |
1 |
|
I 28.27:8701
|
Sulfur dioxide emission control in Japanese copper smelters |
1 |
|
I 28.27:8707
|
The state of the U.S. coal industry : a financial analysis of selected coal-producing companies with observations on industry structure |
1 |
|
I 28.27:8708
|
Helium resources of the United States, 1973 |
1 |
|
I 28.27:8709
|
Coal mine illumination : proceedings, Bureau of Mines Technology Transfer Seminars |
1 |
|
I 28.27:8714 r
|
Assaying ores, concrentrates, and bullion |
1 |
|
I 28.27:8715
|
Basic estimated capital investment and operating costs for underground bituminous coal mines developed for longwall mining |
1 |
|
I 28.27:8716
|
Bibliography of investment costs, operating costs, and related economic information for the mineral industries, January-December 1975 |
1 |
|
I 28.27:8717
|
Analyses of natural gases, 1975 |
1 |
|
I 28.27:8718
|
Reclaiming strip-mined land for recreational use in Lackawanna County, Pa. a demonstration project |
1 |
|
I 28.27:8719
|
Projects to expand fuel sources in Western States |
1 |