(2002). DA bans importation of US poultry products. Philippine Star.
Chicago Style aipamena"DA Bans Importation of US Poultry Products." Philippine Star 2002.
MLA aipamena"DA Bans Importation of US Poultry Products." Philippine Star, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.