Não informado. (1990). Highway research abstracts. National Research Council, Transportation Research Board.
Citace podle Chicago (17th ed.)Não informado. Highway Research Abstracts. Washington: National Research Council, Transportation Research Board, 1990.
Citace podle MLA (8th ed.)Não informado. Highway Research Abstracts. National Research Council, Transportation Research Board, 1990.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..