United States. Bureau of Public Roads, United States. Office of Public Roads and Rural Engineering, United States. Public Roads Administration, United States. Federal Highway Administration, United States. Federal Highway Administration. Offices of Research and Development, United States. Federal Highway Administration. Offices of Research, Development, and Technology, . . . Turner-Fairbank Highway Research Center. (1998). Public roads. Office of Research and Development, Federal Highway Administration.
芝加哥风格引文United States. Bureau of Public Roads, United States. Office of Public Roads and Rural Engineering, United States. Public Roads Administration, United States. Federal Highway Administration, United States. Federal Highway Administration. Offices of Research and Development, Development United States. Federal Highway Administration. Offices of Research, United States. Federal Highway Administration. Office of Research and Development, Development United States. Federal Highway Administration. Office of Research, 与 Turner-Fairbank Highway Research Center. Public Roads. Washington, D.C.: Office of Research and Development, Federal Highway Administration, 1998.
MLA引文United States. Bureau of Public Roads, et al. Public Roads. Office of Research and Development, Federal Highway Administration, 1998.