Title: Issledovanii︠a︡ po istorii Srednego Povolzhʹi︠a︡ (XVI--nachalo XX vv.)
Subjects: History, Agriculture
Places: Mari El (Russia), Vi︠a︡tskiĭ kraĭ (Kirovskai︠a︡ oblastʹ, Russia), Kazanskai︠a︡ gubernii︠a︡ (Russia), Volga River Valley (Russia), Russia (Federation), Volga River Valley