1.

図書
図書
1. German conversation-grammar : a practical method of learning the German language. 1st ed
by Emil Otto ; revised by Franz Lange
出版情報: Tokyo : Nankōdō, 1897
2.

図書
図書
2. German conversation-grammer : a practical method of learning the German language. 25th ed. / revised by Franz Lange
by Emil Otto
出版情報: Heidelberg : Julius Groos , London : David Nutt , New York : Steiger E., 1890
シリーズ名: Méthode Gaspey-Otto-Sauer
3.

図書
図書
3. Key to Dr. Emil Otto's German conversation-grammar : with specimens of letter-writing. 15th ed
Otto, Emil
出版情報: Heideiberg : Julius Groos, 1882
4.

図書
図書
4. German conversation-grammar : a practical method of learning the German language. 26th ed
by Emil Otto ; revised by Franz Lange
出版情報: London : D. Nutt , Heidelberg : Julius Groos, 1895
シリーズ名: Méthode Gaspey-Otto-Sauer
5.

図書
図書
5. German conversation-grammar : a practical method of learning the German language. 25th ed. with vocabulary
by Emil Otto ; revised by Franz Lange
出版情報: London : D. Nutt , Heidelberg : Julius Groos, 1890
シリーズ名: Méthode Gaspey-Otto-Sauer
6.

図書
図書
6. Select German Comedies with explanatory notes and a vocabulary. 2nd ed
by Emil Otto
出版情報: Heidelberg : J. Groos, 1878
シリーズ名: Méthode Gaspey-Otto-Sauer ; . The German reader ; 3rd pt.