Lucas, D. (2006). Cell phone penetration rate seen to peak at 50%. Philippine Daily Inquirer.
Chicagoスタイル(17版)引用形式Lucas, Daxim. "Cell Phone Penetration Rate Seen to Peak at 50%." Philippine Daily Inquirer 2006.
MLA(9版)引用形式Lucas, Daxim. "Cell Phone Penetration Rate Seen to Peak at 50%." Philippine Daily Inquirer, 2006.
警告: この引用は必ずしも正確ではありません.