The oil-regions of the eastern coast of the Caspian Sea
английский/The oil-regions of the eastern coast of the Caspian Sea / D. Sokolov.The oil-regions of the eastern coast of the Caspian Sea / D. Sokolov.The oil-regions of the eastern coast of the Caspian Sea.Moscow/, 1926 ( ). - 1926. - ; 8° см.The oil-regions of the eastern coast of the Caspian Sea. Moscow, 1926 .