Valencia, L. B. (2000). Memorabilia trace Philtranco history. Manila Bulletin.
芝加哥风格引文Valencia, Lynda B. "Memorabilia Trace Philtranco History." Manila Bulletin 2000.
MLA引文Valencia, Lynda B. "Memorabilia Trace Philtranco History." Manila Bulletin, 2000.
警告：这些引文格式不一定是100％准确.