Freese, H. (1941). First steps to God: An illustrated first communion catechism. Catechetical Guild.
Lua i Stíl Chicago (17ú heag.)Freese, Henry. First Steps to God: An Illustrated First Communion Catechism. St. Paul, Minn.: Catechetical Guild, 1941.
Lua MLA (8ú heag.)Freese, Henry. First Steps to God: An Illustrated First Communion Catechism. Catechetical Guild, 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.