(2002). Tuna congress: Tariff inequities. Philippine Graphic.
Cita Chicago (17th ed.)"Tuna Congress: Tariff Inequities." Philippine Graphic 2002.
Cita MLA (9th ed.)"Tuna Congress: Tariff Inequities." Philippine Graphic, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.