Absin, P. B. (1990). Joint efforts of church and gov't needed in population control. IN Letters [column]. Philippine Star.
Chicago-referens (17:e uppl.)Absin, Path Bryan. "Joint Efforts of Church and Gov't Needed in Population Control. IN Letters [column]." Philippine Star 1990.
MLA-referens (9:e uppl.)Absin, Path Bryan. "Joint Efforts of Church and Gov't Needed in Population Control. IN Letters [column]." Philippine Star, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.