Author
United States. Forest Service
64
United States Geological Survey
17
DNAG
12
Geological Society of America
11
NORTHEASTERN FOREST EXPERIMENT STATION
10
Northeastern Forest Experiment Station (Radnor, Pa.)
10
United States. Bureau of Mines
10
Canadian Forest Industries Council
9
DECADE OF NORTH AMERICAN GEOLOGY
9
Northeastern Research Station
9
North Central Forest Experiment Station (Saint Paul, Minn.)
8
United States Department of Agriculture. Forest Service
8
United States. Department of Agriculture
8
PACIFIC NORTHWEST RESEARCH STATION
7
ENERGY, MINES AND RESOURCES CANADA
6
Gottschalk, Kurt W.
6
ROCKY MOUNTAIN FOREST AND RANGE EXPERIMENT STATION
6
Canada/United States Spruce Budworms Program
5
Geological Survey of Canada
5
Nova Scotia Department of Lands and Forests
5
Nova Scotia Department of Mines and Energy
5
Society of American Foresters
5
UNITED STATES FISH AND WILDLIFE SERVICE
5
AMERICAN SOCIETY FOR SURFACE MINING AND RECLAMATION AND THE CANADIAN LAND RECLAMATION ASSOCIATION, ANNUAL MEETING PROCEEDINGS OF A CONFERENCE PITTSBURGH, PENNSYLVANIA
4
Birdsey, Richard A.
4
Canadian Forest Service
4
Duda, M. D.
4
Geological Association of Canada
4
Giancola, Diane
4
Herzstein, R. E.
4
IEA Coal Research
4
IGWG
4
INTERMOUNTAIN RESEARCH STATION
4
International Energy Agency
4
MEND
4
MINE ENVIRONMENT NEUTRAL DRAINAGE PROGRAM
4
Mineralogical Association of Canada
4
Mitsch, William J.
4
Pacific Northwest Research Station (Portland, Or.)
4
STONE AND WEBSTER
4
UNITED STATES DEPARTMENT OF AGRICULTURE
4
United States. Cooperative State Research Service
4
Beaumont, E. A.
3
Bosma, L. I.
3
Canadian Forestry Service
3
Canadian Institute of Mining and Metallurgy
3
Canadian Wildlife Service
3
Cole, David N.
3
Fosbroke, Sandra L.C.
3
Foster, N. H.
3
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