(2001). Bill on breeders rights to create seed monopoly. Manila Times.
Chicago Style aipamena"Bill on Breeders Rights to Create Seed Monopoly." Manila Times 2001.
MLA aipamena"Bill on Breeders Rights to Create Seed Monopoly." Manila Times, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.