Monterola, A. O. (2002). Researcher says carrageenan can prevent pregnancy, AIDS. Manila Bulletin.
Cita Chicago (17th ed.)Monterola, Archie O. "Researcher Says Carrageenan Can Prevent Pregnancy, AIDS." Manila Bulletin 2002.
Cita MLA (9th ed.)Monterola, Archie O. "Researcher Says Carrageenan Can Prevent Pregnancy, AIDS." Manila Bulletin, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.