Problemy Ekonomiki Transportu : biuletyn informacyjny / Ośrodek Badawczy Ekonomiki Transportu.
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| Corporate Author: | |
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| Format: | Journal |
| Language: | Polish |
| Published: |
Warszawa :
OBET,
1973-.
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| Published: | 1973, z.1 (styczeń) -. |
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| Physical Description: | 23 cm. |
| Publication Frequency: | Kwart. |
| ISSN: | 0239-0493 |