Descriptor
| Cybernetics | 1 |
| Educational Technology | 1 |
| Language Instruction | 1 |
| Language Laboratories | 1 |
| Multimedia Instruction | 1 |
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| Programing | 1 |
| Second Language Learning | 1 |
| Tape Recordings | 1 |
Source
| Deutsch als Fremdsprache | 1 |
Author
| Grucza, B. | 1 |
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Grucza, B.; And Others – Deutsch als Fremdsprache, 1972
Descriptors: Cybernetics, Educational Technology, Language Instruction, Language Laboratories
