Usman, E. K. (2000). Czech official cites RP ties. Manila Bulletin.
Cita Chicago (17th ed.)Usman, Edd K. "Czech Official Cites RP Ties." Manila Bulletin 2000.
Cita MLA (9th ed.)Usman, Edd K. "Czech Official Cites RP Ties." Manila Bulletin, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.