In Russian. Arens, Viktor Zhanovich. Geological and hydrogeological foundations of geotechnological methods of mining. Moscow: Nedra, 1978 Geologo-gidrogeologicheskie osnovy geotekhnologicheskikh metodov dobychi poleznykh iskopaemykh/Geological-hydrogeological foundations of geotechnological mining methods In Russian. 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. SKU7620063