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, Charles and Hugo's Language Institute","Hugo's German commercial correspondent : a collection of practical up-to-date letters and commercial phrases, with full translation and explanatory notes; to which is added a list of abbreviations and foreign words used in German business correspondence",,Hugo's Language Institute,,Hugo's simplified system,,,,https://cir.nii.ac.jp/crid/1130282271325224576