Não informado. (1985). Building Services. Chartered Institution of Building Services Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Building Services. London: Chartered Institution of Building Services Engineers, 1985.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Building Services. Chartered Institution of Building Services Engineers, 1985.
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