Gaya APA

Dorr, D. (1990). Option for the poor: A hunders years of Vatican Social Teaching. . Dublin & Maryknoll: Dublin & Maryknoll Gill and Macmillan & Orbis Books.

Gaya MLA

Dorr, Donal. "Option for the poor: A hunders years of Vatican Social Teaching. ". Dublin & Maryknoll: Dublin & Maryknoll Gill and Macmillan & Orbis Books, 1990. Buku.