Não informado. (1961). Housing and planning references. Department of Housing and Urban Development.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Housing and Planning References. Washington: Department of Housing and Urban Development, 1961.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Housing and Planning References. Department of Housing and Urban Development, 1961.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.