R.S.F.S.R.). Pedagogicheskiĭ institut im. V.I. Lenina Kirov (Kirovskai︠a︡ oblastʹ

Identifiers

• Open LibraryOL15254679A

Top Subjects

• Economic conditions (2)
• Mari El (Russia) (2)
• Labor productivity (1)
• Mari El (1)
• Russia (Federation) (1)