APA (7th ed.) Zitazioa
Pierli, F. a. A. (2002). The slums: A challenge to evangelization. Paulines.
Chicago Style (17th ed.) Zitazioa
Pierli, Francesco and Abeledo. The Slums: A Challenge to Evangelization. Nairobi: Paulines, 2002.
MLA (9th ed.) Zitazioa
Pierli, Francesco and Abeledo. The Slums: A Challenge to Evangelization. Paulines, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.