Não informado. (1968). Building research station current papers. Ministry of Public Building and Worlks.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Building Research Station Current Papers. Garston, Inglaterra: Ministry of Public Building and Worlks, 1968.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Building Research Station Current Papers. Ministry of Public Building and Worlks, 1968.
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