Canadian Forest Service Publications
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Two-year-cycle spruce budworm in the Ft. St. James and Mackenzie Forest Districts. 1993. Humphreys, N.; Ferris, R.L. Forestry Canada, Pacific Forestry Centre, Victoria, BC. FIDS Pest Report 93-16.
Year: 1993
Available from: Pacific Forestry Centre
Catalog ID: 3477
Language: English
Series: FIDS Report (CFS)
CFS Availability: PDF (download)