(1990). Building Maintenance & Modernisation Worldwide Volume Two Proceeings Of The International Symposium On Property Modernisation 7-9 March 1990. School Building and Estate Man.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBuilding Maintenance & Modernisation Worldwide Volume Two Proceeings Of The International Symposium On Property Modernisation 7-9 March 1990. School Building and Estate Man, 1990.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBuilding Maintenance & Modernisation Worldwide Volume Two Proceeings Of The International Symposium On Property Modernisation 7-9 March 1990. School Building and Estate Man, 1990.
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