Casayuran, M. B. Filipinos becoming largely environmentally conscious. Manila Bulletin.
Citazione stile Chigago Style (17a edizione)Casayuran, Mario B. "Filipinos Becoming Largely Environmentally Conscious." Manila Bulletin .
Citatione MLA (9a ed.)Casayuran, Mario B. "Filipinos Becoming Largely Environmentally Conscious." Manila Bulletin, .
Attenzione: Queste citazioni potrebbero non essere precise al 100%.