APA (7e ed.) Bronvermelding

Pampanga river cleanup seeks record as world's biggest. Philippine daily inquirer.

Chicago (17e ed.) Bronvermelding

"Pampanga River Cleanup Seeks Record as World's Biggest." Philippine Daily Inquirer .

MLA (9e ed.) Bronvermelding

"Pampanga River Cleanup Seeks Record as World's Biggest." Philippine Daily Inquirer, .

Let op: Deze citaties zijn niet altijd 100% accuraat.