Home › Authors › Sivolob, I͡U. V. 👤 Sivolob, I͡U. V. 1 book Books by Sivolob, I͡U. V. Sovershenstvovanie form organi Sovershenstvovanie form organizat͡sii sot͡sialisticheskogo sorevnovanii͡a v promyshlennosti USSR, 1966-1980 1982