177 books
Bulletin Volume 626-629
Bulletin Volume 184-185
Bulletin Volume 229-236
Mineral Resources of the United States Volume 2
Bulletin Volume 126-131
Bulletin Volume 86-90
Technical Paper Volume 76-86
Bulletin Volume 16-21
Monthly Statement of Coal-Mine Fatalities in the United States
Technical Paper Volume 1-35
Bulletin Volume 154-160
Technical Paper Volume 116-130
Bulletin Volume 194-199
Technical Paper Volume 41-55
Bulletin Volume 144-153
Bulletin Volume 180-184
Bulletin Volume 47-53
Bulletin Volume 72-74
Bulletin Volume 58-64
Bulletin Volume 189
Technical Paper Volume 146-163
Bulletin Volume 127-131
Bulletin Volume 83-85
Bulletin Volume 75-79
