Tan, E. A. (1971). The level of unemployment in the Philippines. s.n.].
芝加哥风格引文Tan, Edita Abella. The Level of Unemployment in the Philippines. [Quezon City: s.n.], 1971.
MLA引文Tan, Edita Abella. The Level of Unemployment in the Philippines. s.n.], 1971.
警告：这些引文格式不一定是100％准确.