National Center for Transportation Studies & ALMEC. (1997). Database formulation on holiday traffic characteristics in Metro Manila. National Center for Transportation Studies.
Chicago-referens (17:e uppl.)National Center for Transportation Studies och ALMEC. Database Formulation on Holiday Traffic Characteristics in Metro Manila. Quezon City: National Center for Transportation Studies, 1997.
MLA-referens (9:e uppl.)National Center for Transportation Studies och ALMEC. Database Formulation on Holiday Traffic Characteristics in Metro Manila. National Center for Transportation Studies, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.