Author
United States. Forest Service
80
United States Geological Survey
18
IEA Coal Research
17
DNAG
15
Geological Society of America
15
INTERNATIONAL GEOLOGICAL CONGRESS MONTREAL, CANADA
15
United States. Bureau of Mines
15
NORTHEASTERN FOREST EXPERIMENT STATION
12
DECADE OF NORTH AMERICAN GEOLOGY
11
International Energy Agency
11
Northeastern Forest Experiment Station (Radnor, Pa.)
11
North Central Forest Experiment Station (Saint Paul, Minn.)
10
Canadian Forest Industries Council
9
International Peat Society
9
Northeastern Research Station
9
IGWG
8
International Union for Conservation of Nature and Natural Resources
8
UNITED STATES DEPARTMENT OF THE INTERIOR
8
United States Department of Agriculture. Forest Service
8
United States. Department of Agriculture
8
Geological Survey of Canada
7
Graham, D. P.
7
INTERGOVERNMENTAL WORKING GROUP ON THE MINERAL INDUSTRY
7
INTERMOUNTAIN FOREST AND RANGE EXPERIMENT STATION
7
PACIFIC NORTHWEST RESEARCH STATION
7
UNITED STATES DEPARTMENT OF AGRICULTURE
7
Canada/United States Spruce Budworms Program
6
ENERGY, MINES AND RESOURCES CANADA
6
Gottschalk, Kurt W.
6
INTERNATIONAL GEOLOGICAL CONGRESS PRAGUE, CZECHOSLOVAKIA
6
MINES MINISTERS' CONFERENCE FREDERICTON, NEW BRUNSWICK
6
ROCKY MOUNTAIN FOREST AND RANGE EXPERIMENT STATION
6
WORLD CONSERVATION UNION
6
Geoscience Information Society
5
Giancola, Diane
5
INTERMOUNTAIN RESEARCH STATION
5
IUCN
5
Mineralogical Association of Canada
5
Nova Scotia Department of Mines and Energy
5
Society of American Foresters
5
UNITED STATES FISH AND WILDLIFE SERVICE
5
United States. Cooperative State Research Service
5
AMERICAN SOCIETY FOR SURFACE MINING AND RECLAMATION AND THE CANADIAN LAND RECLAMATION ASSOCIATION, ANNUAL MEETING PROCEEDINGS OF A CONFERENCE PITTSBURGH, PENNSYLVANIA
4
Beaumont, E. A.
4
Birdsey, Richard A.
4
COMMONWEALTH FORESTRY CONFERENCE
4
Canadian Forest Service
4
Canadian Wildlife Service
4
Duda, M. D.
4
Foster, N. H.
4
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