00797cam a22002531 4500001001300000003000400013005001700017008004100034010001700075035001800092040002600110042001200136050002200148051002700170100002000197245004400217260005000261300006500311410006500376500004300441504002900484650001300513999001700526gs 59000027 DLC20260227111407.0720306s1958 xx 000 0 eng  ags 59000027  a(OCoLC)256080 aDLCcOAkUdOCoLCdDLC apremarc00aQE185b.A4 no. 18 aTN490.C65bR6cCopy 2.1 aRowe, Robert B.10aNiobium (columbium) deposits of Canada. aOttawa,bE. Cloutier, Queen's printer,c1958. avii, 108 p.billus., maps (part fold. col.) diagrs., tables.20aGeological Survey of CanadatEconomic geology seriesvno. 18 aPart of illustrative matter in pocket, aBibliography: p. 99-103. 0aNiobium. c29308d29308