Gaya APA
Boff, L. (1988).
Saint Francis, a model for human liberation, transl.by John W.Diercksmeier, 2nd ed. .
Quezon City:
Clarentian.
Gaya MLA
Boff, Leonardo.
"Saint Francis, a model for human liberation, transl.by John W.Diercksmeier, 2nd ed. ".
Quezon City:
Clarentian,
1988.
Buku.