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Ru| Author | |
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| Description |
To the problem of labor productivity: Sat.st.and materials / [ed.F.E.Dzerzhinsky, MASavelyeva and Z.L.Ledder].- Moscow ;Leningrad Center.UPR.Pechs.All-Russian USSR.-.I. Ledcery, Z.L .. II.Savelyev, M.A. III.Dzerzhinsky, F.E.Electronic Source: PB
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| Publisher | Центр. упр. печ. ВСНХ СССР |