(1952). Fr. de la Costa warns against extremism. Philippine Collegian.
Cita Chicago (17th ed.)"Fr. De La Costa Warns Against Extremism." Philippine Collegian 1952.
Cita MLA (9th ed.)"Fr. De La Costa Warns Against Extremism." Philippine Collegian, 1952.
Atenció: Aquestes cites poden no estar 100% correctes.