Gaya APA
O'Brien, J. (1992).
Theology and the option for the poor. Foreword by Gerald O'Brien. .
Collegeville:
Collegeville Liturgical Press.
Gaya MLA
O'Brien, John.
"Theology and the option for the poor. Foreword by Gerald O'Brien. ".
Collegeville:
Collegeville Liturgical Press,
1992.
Buku.