00773nam0-22002891i-450-99000162354040332120050303160312.0000162354FED01000162354(Aleph)000162354FED0100016235420030910d1911----km-y0itay50------baengBighorn coal basin AlbertaG.S. Malloch.OttawaGovernment Printing Bureau191166 p.25 cmGeologiaAmerica del Nord557Malloch,G.S.353157ITUNINARICAUNIMARCBK99000162354040332160 557 B 3614698FAGBCFAGBCBighorn coal basin Alberta366340UNINA