United States. Dept. of Housing and Urban Development. Office of International Affairs. (1974). Major airports and their effects on regional planning. s.n.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Dept. of Housing and Urban Development. Office of International Affairs. Major Airports and Their Effects on Regional Planning. Washington: s.n, 1974.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United States. Dept. of Housing and Urban Development. Office of International Affairs. Major Airports and Their Effects on Regional Planning. s.n, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.