APA (7th ed.) Citation

National Research Council (U.S.). Highway Research Board, American Association of State Highway Officials, & United States. Bureau of Public Roads. (1969). Traffic control for freeway maintenance. [publisher not identified].

Chicago Style (17th ed.) Citation

National Research Council (U.S.). Highway Research Board, American Association of State Highway Officials, and United States. Bureau of Public Roads. Traffic Control for Freeway Maintenance. [Washington]: [publisher not identified], 1969.

MLA (9th ed.) Citation

National Research Council (U.S.). Highway Research Board, et al. Traffic Control for Freeway Maintenance. [publisher not identified], 1969.