Canadian Forest Service Publications
A disease of the European spruce sawfly, Gilpinia hercyniae (Htg.), and its place in natural control. 1944. Balch, R.E.; Bird, F.T. Scientific Agric. 25: 65-80.
Issued by: Atlantic Forestry Centre
Catalog ID: 6939
Availability: Not available through the CFS (click for more information).