APA (7th ed.) Citation

Pierli, F. a. A. (2002). The slums: A challenge to evangelization. Paulines.

Chicago Style (17th ed.) Citation

Pierli, Francesco and Abeledo. The Slums: A Challenge to Evangelization. Nairobi: Paulines, 2002.

MLA (9th ed.) Citation

Pierli, Francesco and Abeledo. The Slums: A Challenge to Evangelization. Paulines, 2002.