Linked Data Explorer
German
- "German in three months"@en
- "Hugo advanced German"@en
- "Hugo in 3 months German"
- "Problems and exercises"@en
- "Textbooks"
- "Textbooks"@en
- "Conversation and phrase books"
- "Problems and exercises"
- "Self-instruction"@en
- "Self-instruction"
- "Sound recordings"