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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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1926 No. 38. October 14: Year 5. - [International (39) type. "Mospoligraf"], 1926. -16 p. : tab. - Bibliograf. in a substring. note . -45,000 copies.
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Source of the electronic copy: PB |
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