Ekonomika truda na ugol'nykh shakhtakh
By: [avtory]: V.K. Mormul', S.A. Tsybko [i] V.A. Dubodelov.
Contributors: Tsybko, Stepan Andreevich.; Dubodelov, V. A.
Publisher: Tekhnika
Published: 1976
Place of publication: Kiev
Language: rus