00823nam0-22002891i-450-99000162113040332120050225085734.0000162113FED01000162113(Aleph)000162113FED0100016211320030910d1914----km-y0itay50------bafrePyrites au Canadagisements, exploitation, preparation, usagesAlfred W.G. Wilson.OttawaImpr. du Gouvernment1914204 p.25 cmGiacimenti minerariPirite553.66Wilson,Alfred William Gunning69187ITUNINARICAUNIMARCBK99000162113040332160 549.9 B 420473FAGBCFAGBCPyrites au Canada369736UNINA