Columbia subject headings:
Anarchism--Philosophy.
Anarchists--Russia--Biography.
Anarchists--Soviet Union--Biography.
Harvard subject headings:
Anarchism--Philosophy.
Anarchists--Russia--Biography
Anarchists--Soviet Union--Biography
Kropotkin, Petr Alekseevich, kni︠a︡zʹ, 1842-1921--Political and social views.
Princeton subject headings:
Anarchism--Philosophy.
Anarchists--Russia--Biography.
Anarchists--Soviet Union--Biography.
Kropotkin, Petr Alekseevich, kni︠a︡zʹ, 1842-1921--Political and social views.