Gaya APA
Pieper, J., Oakes, E, T, S.
(2001).
Concept of Sin, The
.
Indiana, USA:
St. Augustine's Press.
Gaya MLA
Pieper, Josef., Oakes, Edward, T.,, S.J..
"Concept of Sin, The".
Indiana, USA:
St. Augustine's Press,
2001.
Academic.