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 "Kiyokawa, Yukihiko",The diffusion of new technologies in the Japanese sericulture industry : a study on the experience of hybrid silkworms,,"Institute of Economic Research, Hitotsubashi University",1983,Discussion paper series,,,,https://cir.nii.ac.jp/crid/1130282273232592384