Gaya APA

Baum, G, &, R, E, (. (1989). The logic of solidarity: commentaries on Pope John Paul II's encyclical 'On Social Concern'. With the complete text of the encyclical. . Maryknoll: Orbis Books.

Gaya MLA

Baum, Gregory, &, Robert, Ellsberg, (ed.). "The logic of solidarity: commentaries on Pope John Paul II's encyclical 'On Social Concern'. With the complete text of the encyclical. ". Maryknoll: Orbis Books, 1989. Buku.