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
"Ryu, Hang K. (Hang Keun) and Slottje, Daniel Jonathan",Measuring trends in U.S. income inequality : theory and applications,,Springer,1998,Lecture notes in economics and mathematical systems,,3540642293,,https://cir.nii.ac.jp/crid/1130282271059425792