Sheen, F. J. (1920). The tactics of communism. Paulist Press.
Lua i Stíl Chicago (17ú heag.)Sheen, Fulton J. The Tactics of Communism. New York: Paulist Press, 1920.
Lua MLA (8ú heag.)Sheen, Fulton J. The Tactics of Communism. Paulist Press, 1920.
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