Sarmiento, P. (1999). Da sets strict rules on dioxin products. Manila Times.
Chicago Style aipamenaSarmiento, Prime. "Da Sets Strict Rules on Dioxin Products." Manila Times 1999.
MLA aipamenaSarmiento, Prime. "Da Sets Strict Rules on Dioxin Products." Manila Times, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.