Crisostomo, S. (2012). Pfizer says product recall only due to incorrect declaration. Philippine Star.
Citación estilo ChicagoCrisostomo, Sheila. "Pfizer Says Product Recall Only Due to Incorrect Declaration." Philippine Star 2012.
Cita MLACrisostomo, Sheila. "Pfizer Says Product Recall Only Due to Incorrect Declaration." Philippine Star, 2012.
Warning: These citations may not always be 100% accurate.