APA (7th ed.) Zitazioa

Nehls, G. (1987). Christians ask muslims. Evangelical Mission Press.

Chicago Style (17th ed.) Zitazioa

Nehls, Gerhard. Christians Ask Muslims. Bellville: Evangelical Mission Press, 1987.

MLA (9th ed.) Zitazioa

Nehls, Gerhard. Christians Ask Muslims. Evangelical Mission Press, 1987.