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 "Furness, J. W. and Department of Commerce. Bureau of Foreign and Domestic Commerce",The marketing of tungsten ores and concentrates,,United States Government Printing Office,1929,Trade information bulletin,,,,https://cir.nii.ac.jp/crid/1130000797831478144