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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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1927 No. 3. January 24: Year 6. - ["International" (39th type.) Mospoligraph], 1927. -33-48 s .. - Bibliography. in a substring. note . -45,000 copies.
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Source of the electronic copy: PB |
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