Hopler, T. (1981). A world of difference: Following christ beyond your cultural walls (ed.). Inter varsity press.
Lua i Stíl Chicago (17ú heag.)Hopler, Thom. A World of Difference: Following Christ Beyond Your Cultural Walls. ed. Illinois: Inter varsity press, 1981.
Lua MLA (9ú heag.)Hopler, Thom. A World of Difference: Following Christ Beyond Your Cultural Walls. ed. Inter varsity press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.