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 "Libecap, Gary D.",The education and quality of the American labor force,,JAI Press,1991,"Advances in the study of entrepreneurship, innovation, and economic growth",,1559383739,,https://cir.nii.ac.jp/crid/1130000796696695040