Παραπομπή σε μορφή APA (7η εκδ.)

Hopler, T., & Hopler, M. (1993). Reaching the World Next Door: How to spread the Gospel in the midst of many cultures. Inter-Varsity.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hopler, Thom, και Marcia Hopler. Reaching the World Next Door: How to Spread the Gospel in the Midst of Many Cultures. Illinois: Inter-Varsity, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hopler, Thom, και Marcia Hopler. Reaching the World Next Door: How to Spread the Gospel in the Midst of Many Cultures. Inter-Varsity, 1993.