Gaya APA

Schwartländer, J, &, B, H. (1994). Christians and Muslims facing the challenge of human rights. . Bonn: Bonn German Bishops' Conference Research Group .

Gaya MLA

Schwartländer, Johannes, &, Bielefeldt,, Heiner. "Christians and Muslims facing the challenge of human rights. ". Bonn: Bonn German Bishops' Conference Research Group , 1994. Buku.