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
"Fuchs, Victor R. and Wilburn, Jean Alexander",Productivity differences within the service sector,,"National Bureau of Economic Research, distributed by Columbia University Press",1967,Occasional paper,,,,https://cir.nii.ac.jp/crid/1130282272496365056