Columbia subject headings:
Conscientious objectors--Soviet Union.
Pacifists--Soviet Union.
War Resisters' International.
Harvard subject headings:
Conscientious objectors--Soviet Union.
Pacifists--Soviet Union.
War Resisters' International.
Princeton subject headings:
Conscientious objectors--Soviet Union.
Pacifists--Soviet Union.
War Resisters' International.