Philippines (Commonwealth). Bureau of Public Works. (1940). Official copy of the traffic rules and regulations on national roads of the Philippines. [s.n.
Chicago Style (17th ed.) CitationPhilippines (Commonwealth). Bureau of Public Works. Official Copy of the Traffic Rules and Regulations on National Roads of the Philippines. Manila: [s.n, 1940.
MLA (9th ed.) CitationPhilippines (Commonwealth). Bureau of Public Works. Official Copy of the Traffic Rules and Regulations on National Roads of the Philippines. [s.n, 1940.
Warning: These citations may not always be 100% accurate.