(1969). Philippine mint postage stamps, with a biodata of the Philippines. [s.n.].
芝加哥风格引文Philippine Mint Postage Stamps, with a Biodata of the Philippines. [Manila: [s.n.], 1969.
MLA引文Philippine Mint Postage Stamps, with a Biodata of the Philippines. [s.n.], 1969.
警告：这些引文格式不一定是100％准确.