Hughes, Owen Lloyd 1924- creator text bibliography onc Ottawa] Dept. of Mines and Technical Surveys, Canada [1964] 1964 monographic eng fre

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20 p. illus., maps (3 fold. col. in pocket) 25 cm. by O. L. Hughes. Abstract in English and French. Bibliography: p. 19-20. n-cn-qu Geology Québec (Province) Physical geography Québec (Province) QE185 .A43 no. 106 gs 65000082 U.S. Geol. Survey. Libr. 770428 20260227111416.0 gs 65000082