Sheen, F. J. (1942). The two swords. National Council of Catholic Men.
Lua i Stíl Chicago (17ú heag.)Sheen, Fulton J. The Two Swords. Washington, D.C.: National Council of Catholic Men, 1942.
Lua MLA (8ú heag.)Sheen, Fulton J. The Two Swords. National Council of Catholic Men, 1942.
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