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Izvestiya of the People's Commissariat of Labor of the USSR. - Officer. ed. -Moscow: B. and., 1932. -
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Source of the electronic copy: PB |
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1929 No. 17. April 17: Year 8. - [Labor issues], 1929. -257-272 p. : tab., il .. - Bibliogr. in a substring. note . -55,000 copies.
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Source of the electronic copy: PB |
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