Whitlock, G. E. (1973). Preventive psychology and the church. Westminster Press.
Lua i Stíl Chicago (17ú heag.)Whitlock, Glenn E. Preventive Psychology and the Church. Philadelphia: Westminster Press, 1973.
Lua MLA (8ú heag.)Whitlock, Glenn E. Preventive Psychology and the Church. Westminster Press, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.