Absin, P. B. (1990). Joint efforts of church and gov't needed in population control. IN Letters [column]. Philippine Star.
芝加哥风格引文Absin, Path Bryan. "Joint Efforts of Church and Gov't Needed in Population Control. IN Letters [column]." Philippine Star 1990.
MLA引文Absin, Path Bryan. "Joint Efforts of Church and Gov't Needed in Population Control. IN Letters [column]." Philippine Star, 1990.
警告：这些引文格式不一定是100％准确.