PRRD's next project: Make Manila Bay as clean as Boracay. IN News. Manila Bulletin.
Chicago Style aipamena"PRRD's Next Project: Make Manila Bay as Clean as Boracay. IN News." Manila Bulletin .
MLA aipamena"PRRD's Next Project: Make Manila Bay as Clean as Boracay. IN News." Manila Bulletin, .
Kontuz: berrikusi erreferentzia hauek erabili aurretik.