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
Hugo's Institute for Teaching Foreign Languages,"German conversation simplified : a collection of frequently occurring conversational phrases, introducing all the important idioms",,Hugo's Institute for Teaching Foreign Languages,,Hugo's simplified system,,,,https://cir.nii.ac.jp/crid/1130282272416976512