01124nam2-2200337---450-99000987723040332120140703101758.0000987723FED01000987723(Aleph)000987723FED0100098772320140703d1960----km-y0itay50------baengspafreDKa-------001yy<<15.: >>Genetic problems of uranium and thorium depositsproceedings of section 15edited by Arne Noe-Nygaard, T. Siggerud and O. VaasjokiCopenhagenDet Berlingske Bogtrykkeri1960164 p.ill.24 cmIn testa al front.: International Geological Congress0010009876422001Report of the twenty-first Session Norden15GeologiaCongressiNoe-Nygaard,ArneSiggerudT.Vaasjoki,O.ITUNINARICAUNIMARCBK990009877230403321Z 8/15s.i.DINGEDINGEGenetic problems of uranium and thorium deposits827264UNINA