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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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1925 № 37-38. September 30: Year 4. - Labor issues, 1925. -64 p. : tab. - Bibliograf. in a substring. note . -45,000 copies.
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Source of the electronic copy: PB |
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