Free Philippines. [U.S. Information Service].
芝加哥风格引文Free Philippines. Manila: [U.S. Information Service].
MLA引文Free Philippines. [U.S. Information Service].
警告：这些引文格式不一定是100％准确.
APA引文
Free Philippines. [U.S. Information Service].
芝加哥风格引文Free Philippines. Manila: [U.S. Information Service].
MLA引文Free Philippines. [U.S. Information Service].