United States. Bureau of Public Roads & Organisation for European Economic Co-operation. (1950). 1950 course on theory and practice of highway improvement and utilization in the United States of America: Conducted by Bureau of Public Roads, Department of Commerce as reported by members of Economic Cooperation Administration. Bureau of Public Roads.
Style de citation Chicago (17e éd.)United States. Bureau of Public Roads et Organisation for European Economic Co-operation. 1950 Course on Theory and Practice of Highway Improvement and Utilization in the United States of America: Conducted by Bureau of Public Roads, Department of Commerce as Reported by Members of Economic Cooperation Administration. Washington, D.C.: Bureau of Public Roads, 1950.
Style de citation MLA (8e éd.)United States. Bureau of Public Roads et Organisation for European Economic Co-operation. 1950 Course on Theory and Practice of Highway Improvement and Utilization in the United States of America: Conducted by Bureau of Public Roads, Department of Commerce as Reported by Members of Economic Cooperation Administration. Bureau of Public Roads, 1950.