Zablocki, C. J. (1951). Pope Pius XII on world federation. United States G.P.O..
Lua i Stíl Chicago (17ú heag.)Zablocki, Clement John. Pope Pius XII on World Federation. Washington: United States G.P.O., 1951.
Lua MLA (8ú heag.)Zablocki, Clement John. Pope Pius XII on World Federation. United States G.P.O., 1951.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.