Filio, C. P. (1985). Towards a two-tier model of the development planning system. Asian Center, University of the Philippines.
Citazione stile Chigago Style (17a edizione)Filio, Candido P. Towards a Two-tier Model of the Development Planning System. Quezon City: Asian Center, University of the Philippines, 1985.
Citatione MLA (9a ed.)Filio, Candido P. Towards a Two-tier Model of the Development Planning System. Asian Center, University of the Philippines, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.