Canadian Forest Service Publications
Will balsam woolly aphid infestations spread in B.C.? 1967. Phelps, V.H. Government of Canada, Department of Forestry and Rural Development, Forest Research Laboratory, Victoria, BC. Timber Talks No. 30. 1 p.
Available from: Pacific Forestry Centre
Catalog ID: 27825
Series: Timber Talks (PFC - Victoria)