Style de citation APA (7e éd.)

Alfiler, M. C. P. (2001). Philippine administrative system. UP Open University.

Style de citation Chicago (17e éd.)

Alfiler, Ma. Concepcion P. Philippine Administrative System. Diliman, Quezon City: UP Open University, 2001.

Style de citation MLA (9e éd.)

Alfiler, Ma. Concepcion P. Philippine Administrative System. UP Open University, 2001.