Institution of Highways and Transportation (Great Britain)\nHighway and Traffic Technicians Association (Great Britain). (2018). Highways and Transportation. East Midland Allied Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Institution of Highways and Transportation (Great Britain)\nHighway and Traffic Technicians Association (Great Britain). Highways and Transportation. Peterborough, Inglaterra: East Midland Allied Press, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Institution of Highways and Transportation (Great Britain)\nHighway and Traffic Technicians Association (Great Britain). Highways and Transportation. East Midland Allied Press, 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.