Author
United States. Bureau of Mines
965
United States. Bureau of the Census
734
Geological Survey (U.S.)
315
United States. Mine Safety and Health Administration
115
Making of the Modern World
97
Pennsylvania. Bureau of Topographic and Geologic Survey
86
Datamonitor (Firm)
75
United States. Congress. House. Committee on Resources. Subcommittee on Energy and Mineral Resources
57
National Mine Health and Safety Academy
53
EBSCO Publishing (Firm)
49
GPO MARCIVE
46
ProQuest Ebook Subscriptions
41
Australasian Institute of Mining and Metallurgy
40
Agricola, Georg, 1494-1555
39
ProQuest (Firm)
38
United States. Congress. House. Committee on Natural Resources. Subcommittee on Energy and Mineral Resources
37
United Nations. Economic and Social Commission for Asia and the Pacific
36
United States. Forest Service
35
National Institute for Occupational Safety and Health
33
Business Monitor International
29
Institution of Mining and Metallurgy (Great Britain)
29
Queen's University (Kingston, Ont.). Centre for Resource Studies
29
American Institute of Mining, Metallurgical, and Petroleum Engineers
28
Biringucci, Vannoccio, 1480-1539?
27
Edgar Fahs Smith Memorial Collection (University of Pennsylvania)
26
United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mines and Mining
26
United States. General Accounting Office
25
United States. Minerals Management Service
25
Cecala, Andrew B.
23
Kebblish, William
23
American Institute of Mining and Metallurgical Engineers
21
American Mining Congress
21
Sabin Americana, 1500-1926
21
Society for Mining, Metallurgy, and Exploration (U.S.)
21
United States. Bureau of Land Management
21
United States. Congress. Senate. Committee on Energy and Natural Resources
21
Colorado School of Mines
19
PALCI EBSCO books
19
United States Tariff Commission
19
Illinois State Geological Survey
18
Library of Congress. Congressional Research Service
18
Redmon, Donald E.
18
Society of Mining Engineers of AIME
18
United Nations Development Programme
18
United States. Congress. House. Committee on Mines and Mining
18
United States. Congress. House. Committee on Interior and Insular Affairs
17
Bullfrog Films
16
Hoover, Herbert, 1874-1964
16
Kungl. Svenska vetenskapsakademien
16
Otte, Mary E.
16
more ...