Sheen, F. J. (1937). Communism answers questions of a communist. The Paulist press.
Čikaški stil citiranja (17. izdanje)Sheen, Fulton J. Communism Answers Questions of a Communist. New York: The Paulist press, 1937.
MLA način citiranja (8. izdanje)Sheen, Fulton J. Communism Answers Questions of a Communist. The Paulist press, 1937.
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