Mailleux, P. (1964). Exarch Leonid Feodorov: Bridgebuilder between Rome and Moscow. Kenedy & Sons.
Lua i Stíl Chicago (17ú heag.)Mailleux, Paul. Exarch Leonid Feodorov: Bridgebuilder Between Rome and Moscow. New York: Kenedy & Sons, 1964.
Lua MLA (8ú heag.)Mailleux, Paul. Exarch Leonid Feodorov: Bridgebuilder Between Rome and Moscow. Kenedy & Sons, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.