Não informado. (1972). Building Research Establishment Current Paper. Building Research Establishment.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Building Research Establishment Current Paper. Garston, Inglaterra: Building Research Establishment, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Building Research Establishment Current Paper. Building Research Establishment, 1972.
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