The Coal resources of the USSR
английский/The Coal resources of the USSR / Prepared under the direction of M. M. Prigorovsky ; International geological congress. 17 session USSR. 1937.The Coal resources of the USSR / Prepared under the direction of M. M. Prigorovsky.The Coal resources of the USSR.Leningrad/Moscow/USTPH PCHI USSR. Chief editorial office of the geological-prospecting literature/, 1937 ( ). - USTPH PCHI USSR. Chief editorial office of the geological-prospecting literature, 1937. - 86, [2] с., 3 л. карт. : карт., табл. ; 23 см см.The Coal resources of the USSR. Leningrad, Moscow, 1937 .International geological congress Session (Copenhagen; 1937; Moscow)/