Philippines (Commonwealth). Bureau of Public Works. (1940). Official copy of the traffic rules and regulations on national roads of the Philippines. [s.n.
Citação do estilo Chicago (17ª ed.)Philippines (Commonwealth). Bureau of Public Works. Official Copy of the Traffic Rules and Regulations on National Roads of the Philippines. Manila: [s.n, 1940.
Citação MLA (9ª ed.)Philippines (Commonwealth). Bureau of Public Works. Official Copy of the Traffic Rules and Regulations on National Roads of the Philippines. [s.n, 1940.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.