Portugal, R. F., & Reyes, D. D. The domestic resource cost analysis of copper smelting in the Philippines.
Citazione stile Chigago Style (17a edizione)Portugal, Roque Francisco, e Daniel Delfin Reyes. The Domestic Resource Cost Analysis of Copper Smelting in the Philippines.
Citatione MLA (9a ed.)Portugal, Roque Francisco, e Daniel Delfin Reyes. The Domestic Resource Cost Analysis of Copper Smelting in the Philippines.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.