00763cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040005300111042001200164050001500176082001200191100004500203245004300248260005000291300004900341410004900390504002800439650002200467740003200489gs 49000301 DLC20260227111355.0761108s1949    abcbf    b   f001 0 eng c  ags 49000301   a(OCoLC)2545055  aU.S. Geol. Survey. Libr.cMiEMdMiEMdOCoLCdDLC  apremarc00aQE186b.C7  a557.1231 aCrockford, Michael Bertrand Bray,d1902-10aGeology of Ribbon Creek area, Alberta.  aEdmonton,bA. Shnitka, King's Printer,c1949.  a67 p.bplates, fold. map (in pocket)c25 cm.20aResearch Council of Alberta.tReportvno. 52  aBibliography: p. 61-64. 0aGeologyzAlberta.0 aRibbon Creek area, Alberta.