Canadian Forest Service Publications
Annual report of the forest insect and disease survey: Ontario Region. 1970. Sippell, W.L.; Gross, H.L.; Rose, A.H.Pages 52-71. Canada Department of Fisheries and Forestry, Canadian Forestry Service.
Issued by: Great Lakes Forestry Centre
Catalog ID: 37036
Availability: PDF (request by e-mail)