Proizvoditelʹnostʹ truda i sot︠s︡ialisticheskoe sorevnovanie
Proizvoditelʹnostʹ truda i sot︠s︡ialisticheskoe sorevnovanie
A. G. Gri︠a︡znova
Details
OL Work ID
OL38413484W
Subjects
Labor productivity
Socialist competition
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