In Russian. Savchenko, Vasily Petrovich. Gas Hydrochemical Criteria for Prospecting for Oil and Gas Deposits. Moscow: Subsoil, 1974. Gazogidrokhimicheskie kriterii poiskov zalezhey nefti i gaza. In Russian /Gas Hydrochemical Criteria for Oil and Gas Prospecting. 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. SKU7432167