Valencia, L. B. (2003). By 2005, one in four Filipinos is a mobile phone user - CLS. Manila Bulletin.
芝加哥风格引文Valencia, Lynda B. "By 2005, One in Four Filipinos Is a Mobile Phone User - CLS." Manila Bulletin 2003.
MLA引文Valencia, Lynda B. "By 2005, One in Four Filipinos Is a Mobile Phone User - CLS." Manila Bulletin, 2003.
警告：这些引文格式不一定是100％准确.