Title: Gidrogeologicheskie uslovii͡a formirovanii͡a i razmeshchenii͡a nefti͡anykh i gazovykh mestorozhdeniĭ Volgo-Uralʹskoĭ oblasti
Subjects: Petroleum, Geology, Natural gas, Groundwater
Places: Russia (Federation), Volga-Ural Region