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
"Crew, Michael A. and Kleindorfer, Paul R. and Conference on Postal and Delivery Economics",Emerging competition in postal and delivery services,,Kluwer Academic Publishers,1999,Topics in regulatory economics and policy series,,0792384547,,https://cir.nii.ac.jp/crid/1130282270721357952