Berdadora, N. (2000). Large-scale extortion hurled vs manila cops. Philippine Daily Inquirer.
Chicago Style aipamenaBerdadora, Norman. "Large-scale Extortion Hurled Vs Manila Cops." Philippine Daily Inquirer 2000.
MLA aipamenaBerdadora, Norman. "Large-scale Extortion Hurled Vs Manila Cops." Philippine Daily Inquirer, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.