APA (7th ed.) Citation

National Research Council (U.S.). Highway Research Board. (1971). Motorist aid systems.

Chicago Style (17th ed.) Citation

National Research Council (U.S.). Highway Research Board. Motorist Aid Systems. [Washington], 1971.

MLA (8th ed.) Citation

National Research Council (U.S.). Highway Research Board. Motorist Aid Systems. 1971.

Warning: These citations may not always be 100% accurate.