De Leon, I. C. (1998). RP-Hungary tourism, trade accords signed. Manila Bulletin.
Cita Chicago (17th ed.)De Leon, Isabel C. "RP-Hungary Tourism, Trade Accords Signed." Manila Bulletin 1998.
Cita MLA (9th ed.)De Leon, Isabel C. "RP-Hungary Tourism, Trade Accords Signed." Manila Bulletin, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.