Title: Problemy ėkologii i ėkologicheskogo obrazovanii︠a︡ Cheli︠a︡binskoĭ oblasti
Subjects: Ecology, Environmental conditions
Places: Russia (Federation), Cheli︠a︡binskai︠a︡ oblastʹ, Cheli︠a︡binskai︠a︡ oblastʹ (Russia)