In Russian. Sirbu, Ivan Mikhailovich. The reserves of labor productivity growth in poultry farming. Chisinau: Stiinets, 1972. All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books.SKU7467578
In Russian. Sirbu, Ivan Mikhailovich. Transformation of agricultural labor into a kind of industrial labor. Chisinau: The map of Moldovenyasca, 1973. All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books.SKU7467577