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 "Workman, D. R. (David Richard)","Mineral resources of the Lower Mekong Basin and adjacent areas of Khmer Republic, Laos, Thailand and Republic of Viet-Nam",,United Nations,1972,Document,,,,https://cir.nii.ac.jp/crid/1130000797122413440