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Simon and schuster's guide to mushrooms
Mosses, lichens and ferns of Northwest North America
Edible and poisonous mushrooms of Canada
Forest tree diseases of the prairie provinces
Prairie plants of southeast Alberta
The audubon society field guide to North American mushrooms
The audubon society field guide to North American trees
Anthropology on the Great Plains
Ski-runs in the high Alps
In praise of Switzerland : being the alps in prose ...
Flora of Southern British Columbia and Vancouver Island
Through the heart of Canada
The ecology of fossils
Origin of sedimentary rocks