Otto, E. (1876). German conversation-grammar: A new and practical method of learning the German language (16th ed.). Julius Groos.
Cita Chicago Style (17a ed.)Otto, Emil. German Conversation-grammar: A New and Practical Method of Learning the German Language. 16th ed. Heidelberg: Julius Groos, 1876.
Cita MLA (9a ed.)Otto, Emil. German Conversation-grammar: A New and Practical Method of Learning the German Language. 16th ed. Julius Groos, 1876.
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