Columbia subject headings:
Butashevich-Petrashevskiĭ, Mikhail Vasilʹevich, 1821-1866.
Police--Soviet Union.
Russia--Politics and government--1825-1855.
Secret service--Soviet Union.
Harvard subject headings:
Butashevich-Petrashevskiĭ, Mikhail Vasilʹevich, 1821-1866.
Petrashevsky Group
Russia--Politics and government--1825-1855.
Secret service--Russia.
Princeton subject headings:
Butashevich-Petrashevskiĭ, Mikhail Vasilʹevich, 1821-1866.
Police--Russia.
Russia--Politics and government--1825-1855.
Secret service--Russia.