Canadian Forest Service Publications
A key to sawfly larvae feeding on the foliage of spruce and balsam fir in Ontario. 1969. Lindquist, O.H.; Miller, W.J. Proceedings of the Entomological Society of Ontario 101:118-122.
Available from: Great Lakes Forestry Centre
Catalog ID: 37639
CFS Availability: PDF (request by e-mail)
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