Columbia subject headings:
Communism--Russia (Federation)--Udmurtii︠a︡.
Kalinin, M. I. (Mikhail Ivanovich), 1875-1946--Travel--Russia (Federation)--Udmurtii͡a.
Udmurtii︠a︡ (Russia)--Politics and government.
Harvard subject headings:
Kalinin, M. I. (Mikhail Ivanovich), 1875-1946.
Princeton subject headings:
Communism--Russia (Federation)--Udmurtia.
Kalinin, M. I. (Mikhail Ivanovich), 1875-1946--Travel--Russia (Federation)--Udmurtia.
Udmurtii︠a︡ (Russia)--Politics and government.