Gaya APA

Boff, L, O. (1989). Faith on the Edge: religion and marginalized existence. Transl.by Robert R. Barr. . San Francisco: Harper & Row.

Gaya MLA

Boff, Leonardo,, O.F.M.. "Faith on the Edge: religion and marginalized existence. Transl.by Robert R. Barr. ". San Francisco: Harper & Row, 1989. Buku.