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 "Learned, William Setchel",The oberlehrer : a study of the social and professional evolution of the German schoolmaster,,Johnson Reprint,1969,Harvard studies in education,,,,https://cir.nii.ac.jp/crid/1130282270268993792