Philippines (Republic). Bureau of Public Works & Highway Planning Survey. (1950). Philippine highways: A study of the highway transport system requirements and recommendations. s.n.].
Citação norma ChicagoPhilippines (Republic). Bureau of Public Works and Highway Planning Survey. Philippine Highways: A Study of the Highway Transport System Requirements and Recommendations. [Manila: s.n.], 1950.
Citação norma MLAPhilippines (Republic). Bureau of Public Works and Highway Planning Survey. Philippine Highways: A Study of the Highway Transport System Requirements and Recommendations. s.n.], 1950.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.