Joaquin, A. (1997). Gov't engineers scored for wrong dike design. Philippine Daily Inquirer.
Chicago Style aipamenaJoaquin, Ansbert. "Gov't Engineers Scored for Wrong Dike Design." Philippine Daily Inquirer 1997.
MLA aipamenaJoaquin, Ansbert. "Gov't Engineers Scored for Wrong Dike Design." Philippine Daily Inquirer, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.