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Variations in tectonic styles in Canada
edited by Raymond A. Price and R.J.W. Dou...
Bok Engelsk 1972
Geology and economic minerals of Canada
R. J. W. Douglas, scientific editor
Bok Engelsk 1970
Mount Head map area, Alberta
Douglas, R. J. W.
Bok Engelsk 1958
Callum Creek, Langford Creek and Gap map-areas, Alberta
Douglas, R. J. W.
Bok Engelsk 1950