Catholic Church & Markert, F. (1931). My companion: A simple prayer book worthy of being your daily companion. Messenger Corp..
Lua i Stíl Chicago (17ú heag.)Catholic Church agus F. Markert. My Companion: A Simple Prayer Book Worthy of Being Your Daily Companion. Chicago, Ill.: Messenger Corp., 1931.
Lua MLA (8ú heag.)Catholic Church agus F. Markert. My Companion: A Simple Prayer Book Worthy of Being Your Daily Companion. Messenger Corp., 1931.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.