Não informado. (1960). Canadian Building Digest. National Research Council of Canada, Division of Building Research.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Canadian Building Digest. Ottawa: National Research Council of Canada, Division of Building Research, 1960.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Canadian Building Digest. National Research Council of Canada, Division of Building Research, 1960.
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