Obshchestvenno poleznyi, proizvoditel'nyi trud uchashchikhsya
By: V.V. Korol'skii, V.D. Simonenko.
Contributors: Simonenko, V. D.
Series: Biblioteka uchitelya truda
Publisher: Prosveshchenie
Published: 1990
Place of publication: Moskva
Language: rus