MacLean, D. A. (1946). Pope Pius XII, Apostle of World Peace. Washington, D.C..
Lua i Stíl Chicago (17ú heag.)MacLean, Donald Alexander. Pope Pius XII, Apostle of World Peace. Washington, D.C., 1946.
Lua MLA (8ú heag.)MacLean, Donald Alexander. Pope Pius XII, Apostle of World Peace. Washington, D.C., 1946.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.