APA引文

Perpeña, E. C. (2001). Improving cell phone services. Manila Times.

Chicago Style (17th ed.) Citation

Perpeña, Ed C. "Improving Cell Phone Services." Manila Times 2001.

MLA引文

Perpeña, Ed C. "Improving Cell Phone Services." Manila Times, 2001.

警告：這些引文格式不一定是100％准確.