APA (7th ed.) Zitazioa

Muehl, W. (1986). Why preach ? Why listen ? Fortress.

Chicago Style (17th ed.) Zitazioa

Muehl, William. Why Preach ? Why Listen ? Philadelphia: Fortress, 1986.

MLA (9th ed.) Zitazioa

Muehl, William. Why Preach ? Why Listen ? Fortress, 1986.