In Russian. Nilson, Oswald Arturovich. Possibilities of Intensifying the Educational Process through the Application of Independent Student Work. Moscow: 1976. Vozmozhnosti aktivizatsii uchebnogo protsessa na osnove primeneniya samostoyatel'noy raboty uchashchikhsya. In Russian /Opportunities for strengthening the learning process through the use of self-help by students . 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. SKU6947600