Knowles, G. E. (1981). How to help your church grow. Review and Herald.
Lua i Stíl Chicago (17ú heag.)Knowles, George E. How to Help Your Church Grow. Review and Herald, 1981.
Lua MLA (9ú heag.)Knowles, George E. How to Help Your Church Grow. Review and Herald, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.