Gangel, K. O. (1970). Leadership for Church education. Moody.
Lua i Stíl Chicago (17ú heag.)Gangel, Kenneth O. Leadership for Church Education. Chicago: Moody, 1970.
Lua MLA (9ú heag.)Gangel, Kenneth O. Leadership for Church Education. Moody, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.