The Crowsnest volcanics MacKenzie, John David, 1888- creator text book Ottawa Govt. Print. Bureau 1914 1914
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ENG Alberta Geology QH 1 .C13 no. 4 b Bulletin (National Museum of Canada), no. 20 Bulletin (National Museum of Canada), no. 4 Canada. Geological Survey. Museum bulletin, no. 4 https://www.biodiversitylibrary.org/bibliography/159261 10.4095/104960 OPET