00836nam0-22002771i-450-99000162334040332120050303153916.0000162334FED01000162334(Aleph)000162334FED0100016233420030910d1915----km-y0itay50------baengCorundum, its occurrence, distribution, exploitation, and usesAlfred Ernest BarlowOttawaGovernment Printing Bureau1915377 p., 28 tav.25 cmGeologia557Barlow,Alfred Ernest69328ITUNINARICAUNIMARCBK99000162334040332160 557 B 1114745FAGBCFAGBCCorundum, its occurrence, distribution, exploitation, and uses366361UNINA