Canadian Forest Service Publications
The spruce budworm situation in Ontario, 1970. 1971. Howse, G.M.; Harnden, A.A.; Sippell, W.L. Government of Canada, Department of Fisheries and Forestry, Forest Research Laboratory, Ontario Region. Information Report O - X-147. 41 p.
Issued by: Great Lakes Forestry Centre
Catalog ID: 29842
Availability: PDF (download)