Canadian Forest Service Publications
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Large aspen tortrix in trembling aspen in the Prince George Forest Region. 1992. Humphreys, N. Forestry Canada, Pacific Forestry Centre, Victoria, BC. FIDS Pest Report 92-23.
Year: 1992
Available from: Pacific Forestry Centre
Catalog ID: 31631
Language: English
Series: FIDS Report (CFS)
CFS Availability: PDF (download)