Columbia subject headings:
Kamenev, Lev Borisovich, 1883-1936.
Kirov, Sergeĭ Mironovich, 1886-1934.
Pi͡atakov, G. L. (Georgiĭ Leonidovich), 1890-1937.
Radek, Karl, 1885-1939.
Smirnov, Ivan Nikitich, 1881-1936.
Soviet Union--Politics and government--1917-1936.
Zinovyev, Grigory Yevseyevich, 1883-1936.
Harvard subject headings:
Kamenev, Lev Borisovich, 1883-1936.
Kirov, Sergeĭ Mironovich, 1888-1934.
Pi︠a︡takov, G. L. (Georgiĭ Leonidovich), 1890-1937
Radek, Karl, 1885-1939
Smīrnov, Īvan Nīkītīch, 1881-1936.
Soviet Union--Politics and government--1917-1936.
Zinovyev, Grigory Yevseyevich, 1883-1936.
Princeton subject headings: