Gaya APA

Dorr, D. (2012). Option for the poor and for the earth: Catholic social teaching. . Maryknoll: Maryknoll Orbis Books.

Gaya MLA

Dorr, Donal. "Option for the poor and for the earth: Catholic social teaching. ". Maryknoll: Maryknoll Orbis Books, 2012. Buku.