National Research Council (U.S.). Transportation Research Board, National Cooperative Highway Research Program, Pennsylvania State University. Dept. of Civil Engineering, Jovanis, P., & Gross, F. (2006). Core competencies for highway safety professionals. Transportation Research Board.
Čikaški stil citiranja (17. izdanje)National Research Council (U.S.). Transportation Research Board, National Cooperative Highway Research Program, Pennsylvania State University. Dept. of Civil Engineering, Paul Jovanis, i Frank Gross. Core Competencies for Highway Safety Professionals. Washington, D.C: Transportation Research Board, 2006.
MLA način citiranja (9. izdanje)National Research Council (U.S.). Transportation Research Board, et al. Core Competencies for Highway Safety Professionals. Transportation Research Board, 2006.