Darke, R. (1969). Report on the seminar "Urban sociology and planning" sponsored and held at the C.E.S., 1st April 1969. Centre for Environmental Studies.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Darke, Roy. Report on the Seminar "Urban Sociology and Planning" Sponsored and Held at the C.E.S., 1st April 1969. London: Centre for Environmental Studies, 1969.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Darke, Roy. Report on the Seminar "Urban Sociology and Planning" Sponsored and Held at the C.E.S., 1st April 1969. Centre for Environmental Studies, 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.