National Research Council (U.S.). Highway Research Board. (1974). Air quality and environmental factors: 5 reports prepared for the 53d annual meeting of the Highway Research Board. Transportation Research Board, National Research Council.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Highway Research Board. Air Quality and Environmental Factors: 5 Reports Prepared for the 53d Annual Meeting of the Highway Research Board. Washington: Transportation Research Board, National Research Council, 1974.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Highway Research Board. Air Quality and Environmental Factors: 5 Reports Prepared for the 53d Annual Meeting of the Highway Research Board. Transportation Research Board, National Research Council, 1974.