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I 28.16/2:M 66/6
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Mining and mineral operations in the Rocky Mountain States : a visitor guide |
1 |
|
I 28.16/2:M 66/7
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Mining and mineral operations in the South-Central States : a visitor guide |
1 |
|
I 28.16/2:M 66/10
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Guide to international mineral information : from the U.S. Bureau of Mines--the minerals source |
1 |
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I 28.16/2:M 66/975/2
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Mining and mineral operations in the South Atlantic States : a visitor guide |
1 |
|
I 28.16/2:R 31
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Mine rescue apparatus and auxiliary equipment |
1 |
|
I 28.16/2:SA 1/2/994
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Safety and environmental health handbook |
1 |
|
I 28.16/2:T 22
|
A Teacher's tour guide to Denver-area mines & mineral processing facilities |
1 |
|
I 28.16/3:M 56
|
Methane control in tunneling |
1 |
|
I 28.167:987
|
Helium resources of the United States |
1 |
|
I 28.167:991
|
Helium resources of the United States |
1 |
|
I 28.167:993
|
Helium resources of the United States |
1 |
|
I 28.169/3:985
|
Nonferrous metals supply/demand data |
1 |
|
I 28.17:8021
|
Dust control in mining, tunneling, and quarrying in the United States, 1955 through 1957 |
1 |
|
I 28.17:8171
|
Injury experience in quarrying, 1960 |
1 |
|
I 28.173:991/1
|
Metal industry indicators |
1 |
|
I 28.173:991/2
|
Metal industry indicators |
1 |
|
I 28.173:991/3
|
Metal industry indicators |
1 |
|
I 28.2:AC 4
|
Mineral health and safety research achievements of the U.S. Bureau of Mines |
1 |
|
I 28.2:B 39/2/Bob
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Bob Hall exercise : instructor's copy |
1 |
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I 28.2:B 39/2/Marvin/inst.
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Marvin R. Letcher exercise : instructor's copy |
1 |