In Russian. Klochko, Viktor Petrovich. Main features of geology and oil and gas content of the central part of South Sahara. Kyiv: Naukova dumka, 1970. Osnovnye cherty geologii i neftegazonosnosti tsentral'noy chasti Yuzhnoy Sakhary. In Russian /Main features of the geology and oil and gas content of central South Sahara . 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. SKU7400219