| 1.
図書 |
図書
|
United States Department of the Interior, Bureau of Mines
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| 2.
図書 |
図書
|
Carnegie Institute of Technology
|
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| 3.
図書 |
図書
|
prepared by staff of the Bureau of Mines
|
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| 4.
図書 |
図書
|
O.E. Kiessling, U.S. Department of Commerce, Bureau of Mines
|
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| 5.
図書 |
図書
|
by Chas. G. Maier
|
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| 6.
図書 |
図書
|
sponsored by West Virginia University, College of Engineering, Department of Electrical Engineering ...[et al.]
|
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| 7.
図書 |
図書
|
Marguerite van Ness, Jr., editor ; cosponsored by the U.S. Bureau of Mines and IIT Research Institute
|
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| 8.
図書 |
図書
|
United States. Bureau of Mines
|
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| 9.
図書 |
図書
|
prepared by staff of the Bureau of Mines
|
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| 10.
図書 |
図書
|
sponsored by the Mining Industry Committee of the IEEE Industry Applications Society and U.S. Department of Interior Bureau of Mines
|
