APA引文

(1969). Philippine mint postage stamps, with a biodata of the Philippines. [s.n.].

Chicago Style (17th ed.) Citation

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：這些引文格式不一定是100％准確.