National Research Council (U.S.). Transportation Research Board, National Cooperative Highway Research Program, United States. Federal Highway Administration, Rodegerdts, L. A., & Robinson, B. W. (2010). Roundabouts: An informational guide (2nd ed.). Transportation Research Board.
Style de citation Chicago (17e éd.)National Research Council (U.S.). Transportation Research Board, National Cooperative Highway Research Program, United States. Federal Highway Administration, Lee A. Rodegerdts, et Bruce W. Robinson. Roundabouts: An Informational Guide. 2nd ed. Washington, DC: Transportation Research Board, 2010.
Style de citation MLA (8e éd.)National Research Council (U.S.). Transportation Research Board, et al. Roundabouts: An Informational Guide. 2nd ed. Transportation Research Board, 2010.