De Vera-Ruiz, E. DENR inaugurates solar-powered sewage plant near Manila Bay. Manila Bulletin.
Citazione stile Chigago Style (17a edizione)De Vera-Ruiz, Ellalyn. "DENR Inaugurates Solar-powered Sewage Plant Near Manila Bay." Manila Bulletin .
Citatione MLA (9a ed.)De Vera-Ruiz, Ellalyn. "DENR Inaugurates Solar-powered Sewage Plant Near Manila Bay." Manila Bulletin, .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.