(1997). PETA marks 30th anniversary with a yearlong celebration. Philippine Star.
芝加哥风格引文"PETA Marks 30th Anniversary with a Yearlong Celebration." Philippine Star 1997.
MLA引文"PETA Marks 30th Anniversary with a Yearlong Celebration." Philippine Star, 1997.
警告：这些引文格式不一定是100％准确.