Gaya APA

Baum, G. (1982). The priority of labor: A commentary on 'Laborem Exercens', Encyclical letter of Pope John Paul II. . New York dsl: Paulist Press.

Gaya MLA

Baum, Gregory. "The priority of labor: A commentary on 'Laborem Exercens', Encyclical letter of Pope John Paul II. ". New York dsl: Paulist Press, 1982. Buku.