Não informado. (1968). Building research station current papers. Ministry of Public Building and Worlks.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Building Research Station Current Papers. Garston, Inglaterra: Ministry of Public Building and Worlks, 1968.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Building Research Station Current Papers. Ministry of Public Building and Worlks, 1968.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.