APA-Zitierstil (7. Ausg.)

Alfiler, M. C. P. (1999). Philippine administrative system. University of the Philippines Open University.

Chicago-Zitierstil (17. Ausg.)

Alfiler, Ma. Concepcion P. Philippine Administrative System. Quezon City: University of the Philippines Open University, 1999.

MLA-Zitierstil (9. Ausg.)

Alfiler, Ma. Concepcion P. Philippine Administrative System. University of the Philippines Open University, 1999.