Halos, S. C. (2000). Defining RP's agricultural biotechnology policy. Manila Times.
Chicago Style aipamenaHalos, Saturnina C. "Defining RP's Agricultural Biotechnology Policy." Manila Times 2000.
MLA aipamenaHalos, Saturnina C. "Defining RP's Agricultural Biotechnology Policy." Manila Times, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.