(1990). Building Maintenance & Modernisation Worldwide Volume Two Proceeings Of The International Symposium On Property Modernisation 7-9 March 1990. School Building and Estate Man.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Building Maintenance & Modernisation Worldwide Volume Two Proceeings Of The International Symposium On Property Modernisation 7-9 March 1990. School Building and Estate Man, 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Building Maintenance & Modernisation Worldwide Volume Two Proceeings Of The International Symposium On Property Modernisation 7-9 March 1990. School Building and Estate Man, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.