Hopler, T., & Hopler, M. (1993). Reaching the World Next Door: How to spread the Gospel in the midst of many cultures. Inter-Varsity.
Lua i Stíl Chicago (17ú heag.)Hopler, Thom, agus Marcia Hopler. Reaching the World Next Door: How to Spread the Gospel in the Midst of Many Cultures. Illinois: Inter-Varsity, 1993.
Lua MLA (9ú heag.)Hopler, Thom, agus Marcia Hopler. Reaching the World Next Door: How to Spread the Gospel in the Midst of Many Cultures. Inter-Varsity, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.