National Research Council (U.S.). Highway Research Board, United States. Federal Highway Administration, & American Association of State Highway Officials. (1972). Telecommunications systems for highway administration and operations.
芝加哥风格引文National Research Council (U.S.). Highway Research Board, United States. Federal Highway Administration, 与 American Association of State Highway Officials. Telecommunications Systems for Highway Administration and Operations. [Washington], 1972.
MLA引文National Research Council (U.S.). Highway Research Board, et al. Telecommunications Systems for Highway Administration and Operations. 1972.
警告：这些引文格式不一定是100％准确.