Drakeford, J. W. (1986). Humor in preaching. Ministry Resources Library.
Lua i Stíl Chicago (17ú heag.)Drakeford, John W. Humor in Preaching. Grand Rapids, MI: Ministry Resources Library, 1986.
Lua MLA (9ú heag.)Drakeford, John W. Humor in Preaching. Ministry Resources Library, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.