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
"Nordhaus, William D.",The optimal rate and diection of technical change,,Cowles Foundation for Research in Economics at Yale University,1968,Cowles Foundation paper,,,,https://cir.nii.ac.jp/crid/1130000796137747712