Esguerra, C. V. (2004). Cops to wear Kotong pins in effort to stop extortion. Philippine Daily Inquirer.
Citazione stile Chigago Style (17a edizione)Esguerra, Christian V. "Cops to Wear Kotong Pins in Effort to Stop Extortion." Philippine Daily Inquirer 2004.
Citatione MLA (9a ed.)Esguerra, Christian V. "Cops to Wear Kotong Pins in Effort to Stop Extortion." Philippine Daily Inquirer, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.