Safranyik, Shrimpton, and Whitney. 1975. An interpretation of the interaction between lodgepole pine, the mountain pine beetle, and its associated blue stain fungi in western Canada.
This is a transcription from the original printed text. It contains a seachable text transcription, and a digital scan of the original text, including the front matter of the book. This paper is widely cited, but not available online.
The Ground Beetles of Alaska and Canada, a taxonomic key, by Carl H Lindroth.
A older, out-of-print but fully detailed taxonomic key for the carabidae.
