Gaya APA
II., J, P. ( 1980)).
The theme of liberation, presented by Roger Heckel S.J. .
(Vatican City:
Iustitia et Pax.
Gaya MLA
II., Joannes, Paulus.
"The theme of liberation, presented by Roger Heckel S.J. ".
(Vatican City:
Iustitia et Pax,
1980).
Buku.