Style de citation APA (7e éd.)

Tan, E. A. (1971). The level of unemployment in the Philippines. s.n.].

Style de citation Chicago (17e éd.)

Tan, Edita Abella. The Level of Unemployment in the Philippines. [Quezon City: s.n.], 1971.

Style de citation MLA (9e éd.)

Tan, Edita Abella. The Level of Unemployment in the Philippines. s.n.], 1971.