Não informado. (2004). Highway research circular. National Research Council, Highway Research Board.
Chicago Style (17th ed.) CitationNão informado. Highway Research Circular. Washington: National Research Council, Highway Research Board, 2004.
MLA (8th ed.) CitationNão informado. Highway Research Circular. National Research Council, Highway Research Board, 2004.
Warning: These citations may not always be 100% accurate.