Sanders, J. O. (1967). Spiritual leadership. Moody.
Lua i Stíl Chicago (17ú heag.)Sanders, J. Oswald. Spiritual Leadership. Moody, 1967.
Lua MLA (9ú heag.)Sanders, J. Oswald. Spiritual Leadership. Moody, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.