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| DDC: | 340 |
| ISSN(s): | 0137-7043 |
| Publisher: | Centralny Instytut Ochrony Pracy : Warszawa |
| Appears: | Elektronische Ressource |
| ID: | PERI:(DE-600)2698803-3 |
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Record created 2014-10-19, last modified 2014-10-19
Publisher: (free access)