著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Prokop, F. W.",The future economic significance of large lowgrade copper and nickel deposits,,Gebrüder Borntraeger,1975,Monograph series on mineral deposits,,344312013X,,https://cir.nii.ac.jp/crid/1130000793760307712