National Center for Transportation Studies & ALMEC. (1997). Database formulation on holiday traffic characteristics in Metro Manila. National Center for Transportation Studies.
Cita Chicago (17th ed.)National Center for Transportation Studies i ALMEC. Database Formulation on Holiday Traffic Characteristics in Metro Manila. Quezon City: National Center for Transportation Studies, 1997.
Cita MLA (9th ed.)National Center for Transportation Studies i ALMEC. Database Formulation on Holiday Traffic Characteristics in Metro Manila. National Center for Transportation Studies, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.