Dela Peña, Z. B. (2003). GSIS forms P30-B real estate arm. Philippine Star.
芝加哥风格引文Dela Peña, Zinnia B. "GSIS Forms P30-B Real Estate Arm." Philippine Star 2003.
MLA引文Dela Peña, Zinnia B. "GSIS Forms P30-B Real Estate Arm." Philippine Star, 2003.
警告：这些引文格式不一定是100％准确.