Ershov A. Kopeliovich A. Geology and ore manifestations of the upper reaches of the Tskhenis-Tskhali River (Tsan arsenoperite deposit). In Russian /Ershov A. Kopeliovich A. Geologiya i rudnye proyavleniya verkhovev reki Tskhenis-tskhali (Tsanskoe arsenoperitovoe mestorozhdenie). M-L State Geolizdat 1941 112s and Table 10. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalba96f5671201ac8f1.