Papa, J. (2001). Recycling NGO wins Asian waste management award. Philippine Daily Inquirer.
Citazione stile Chigago Style (17a edizione)Papa, Joey. "Recycling NGO Wins Asian Waste Management Award." Philippine Daily Inquirer 2001.
Citatione MLA (9a ed.)Papa, Joey. "Recycling NGO Wins Asian Waste Management Award." Philippine Daily Inquirer, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.