Cita APA (7a ed.)

United States. Federal Highway Administration, United States. Bureau of Public Roads, United States. Federal Highway Administration. Offices of Research, Development, and Technology, & United States. Federal Highway Administration. Office of Research and Development. (1918). Public roads. U.S. G.P.O..

Cita Chicago Style (17a ed.)

United States. Federal Highway Administration, United States. Bureau of Public Roads, Development United States. Federal Highway Administration. Offices of Research, y United States. Federal Highway Administration. Office of Research and Development. Public Roads. Washington: U.S. G.P.O., 1918.

Cita MLA (8a ed.)

United States. Federal Highway Administration, et al. Public Roads. U.S. G.P.O., 1918.