National Research Council (U.S.). Highway Research Board, United States. Bureau of Public Roads, & Hatt, W. J. K. (1922). Highway research projects in the United States: Results of census by Advisory Board on Highway Research, Division of Engineering, National Research Council, in cooperation with the Bureau of Public Roads, United States Department of Agriculture. National Research Council.
Chicago Style (17th ed.) CitationNational Research Council (U.S.). Highway Research Board, United States. Bureau of Public Roads, and William John Kendrick Hatt. Highway Research Projects in the United States: Results of Census by Advisory Board on Highway Research, Division of Engineering, National Research Council, in Cooperation with the Bureau of Public Roads, United States Department of Agriculture. Washington, D.C.: National Research Council, 1922.
MLA citiranjeNational Research Council (U.S.). Highway Research Board, et al. Highway Research Projects in the United States: Results of Census by Advisory Board on Highway Research, Division of Engineering, National Research Council, in Cooperation with the Bureau of Public Roads, United States Department of Agriculture. National Research Council, 1922.