Author
Canada Centre for Mineral and Energy Technology
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
Canadian Forestry Service
1
Forest Insect and Disease Survey (Canada)
1
Geological Association of Canada. Mineral Deposits Division
1
North Carolina State University - Industry Cooperative Tree Improvement Program
1