Alfiler, M. C. P. (1999). Philippine administrative system. University of the Philippines Open University.
Chicagoスタイル(17版)引用形式Alfiler, Ma. Concepcion P. Philippine Administrative System. Quezon City: University of the Philippines Open University, 1999.
MLA(9版)引用形式Alfiler, Ma. Concepcion P. Philippine Administrative System. University of the Philippines Open University, 1999.
警告: この引用は必ずしも正確ではありません.