Craig, A. (1954). Preaching in a scientific age. Charles Scribner`s Sons.
Lua i Stíl Chicago (17ú heag.)Craig, A.C. Preaching in a Scientific Age. New York: Charles Scribner`s Sons, 1954.
Lua MLA (9ú heag.)Craig, A.C. Preaching in a Scientific Age. Charles Scribner`s Sons, 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.