00000nas 2200000za 4500 9.820265 CaOODSP 20230131161136 cr ||||||||||| 160630c20129999onc x m o f0###a0eng|d CaOODSP eng n-cn--- M41-11E-PDF Scientific presentation (Geological Survey of Canada) Scientific presentation [electronic resource] / Geological Survey of Canada. [Ottawa] : Geological Survey of Canada, [2012]- Irregular Some issues are bilingual and some issues published in French under title: Présentation scientifique. gccst Geology gccst Scientific information Canada. Natural Resources Canada. Geological Survey of Canada. Présentation scientifique (CaOODSP)9.836611 Scientific presentation (CaOODSP)9.858893