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| literature source (I. Havkin); source of literature (In the reference to a source of literature letters of the same size are used. I. Havkin); literary source (ROGER YOUNG) | |||
| literary source (exposer) | |||
| литературный источник: 16 a las frases, 9 temas |
| Cargo de bibliotecario | 1 |
| Cinematógrafo | 1 |
| General | 3 |
| Industria energetica | 1 |
| Investigación y desarrollo | 3 |
| Makárov | 2 |
| Medicina | 2 |
| Poligrafía | 1 |
| Religión | 2 |