00798nam0-22002891i-450-99000162175040332120050225094827.0000162175FED01000162175(Aleph)000162175FED0100016217520030910d1927----km-y0itay50------baengArsenic - bearing deposits in CanadaM.E. HurstOttawaF.A. Acland1927181 p.25 cmGiacimenti minerariArsenico553.47Hurst,Macleod Ewart<1897- >69221ITUNINARICAUNIMARCBK99000162175040332160 551 B 7214922FAGBCFAGBCArsenic - bearing deposits in Canada369761UNINA