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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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1928 No. 14. April 3: Year 7. - Labor issues, 1928. -209-224 pp. - Bibliograf. in a substring. note . -50000 copies.
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Source of the electronic copy: PB |
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