Crisostomo, S. (2012). Pfizer says product recall only due to incorrect declaration. Philippine Star.
芝加哥风格引文Crisostomo, Sheila. "Pfizer Says Product Recall Only Due to Incorrect Declaration." Philippine Star 2012.
MLA引文Crisostomo, Sheila. "Pfizer Says Product Recall Only Due to Incorrect Declaration." Philippine Star, 2012.
警告:这些引文格式不一定是100%准确.