1946. 2012-07-09T19:35:12Z. 2012-07-19T15:47:29Z. Armstrong, J. E. (John Edward), 1912-. Geological Survey of Canada. English. Public. British Columbia, Manson Creek Region, and Cassiar (District).
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1946. 2012-06-29T13:10:11Z. 2012-07-05T13:04:51Z. Armstrong, J. E. (John Edward), 1912-. Canada Dept. of Mines and Resources, Mines and Geology Branch, Bureau of Geology and Topography. English. Public. British Columbia, Takla Lake Region, Cassiar (District), and Takla Group (B.C.).
