Author
Canadian Forestry Service
2
Geological Society of America
2
Natural Areas Association (U.S.)
2
Nova Scotia Department of Natural Resources
2
American Geological Institute
1
Canada Department of Fisheries and Forestry. Forest Research Laboratory
1
Canada. Dept. of Agriculture. Forest Biology Division
1
Canada. Dept. of Forestry
1
Canada. Forest Entomology and Pathology Branch
1
Canada. Forestry Branch
1
Federation of Nova Scotia Naturalists
1
Forest Insect and Disease Survey (Canada)
1
Geological Association of Canada
1
Geological Survey of Ireland
1
Geoscientists Nova Scotia
1
National Research Council Canada
1
National Research Council of Canada
1
Natural Resources Education Centre
1
Nova Scotia. Dept. of Lands and Forests
1
University of Chicago. Dept. of Geology
1
Yukon Chamber of Mines
1