Furfey, P. H. (1936). Catholic extremism. Preservation of the Faith.
Chicago Style (17. basım) AtıfFurfey, Paul Hanly. Catholic Extremism. Silver Spring, Md.: Preservation of the Faith, 1936.
MLA (8th ed.) AtıfFurfey, Paul Hanly. Catholic Extremism. Preservation of the Faith, 1936.
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