National Research Council (U.S.). Highway Research Board. Directory. National Research Council, National Academy of Sciences, National Academy of Engineering.
Chicago Style (17th ed.) CitationNational Research Council (U.S.). Highway Research Board. Directory. Washington, D.C.: National Research Council, National Academy of Sciences, National Academy of Engineering.
MLA (9th ed.) CitationNational Research Council (U.S.). Highway Research Board. Directory. National Research Council, National Academy of Sciences, National Academy of Engineering.
Warning: These citations may not always be 100% accurate.