Gaya APA
Rerum novarum - Laborem exercens - 2000, symposium, Roma 3-5/IV/1982. . ().
Roma:
Pontificia Commissio Iustitia & Pax.
Gaya MLA
Rerum novarum - Laborem exercens - 2000, symposium, Roma 3-5/IV/1982. .
.
Roma:
Pontificia Commissio Iustitia & Pax,
.
Buku.