Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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