Sheen, F. J. (1942). The two swords. National Council of Catholic Men.
Chicago Style (17. basım) AtıfSheen, Fulton J. The Two Swords. Washington, D.C.: National Council of Catholic Men, 1942.
MLA (8th ed.) AtıfSheen, Fulton J. The Two Swords. National Council of Catholic Men, 1942.
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