Não informado. (1972). Building Research Establishment Current Paper. Building Research Establishment.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Building Research Establishment Current Paper. Garston, Inglaterra: Building Research Establishment, 1972.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Building Research Establishment Current Paper. Building Research Establishment, 1972.
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