Não informado. (2008). International Preservation News. International Federation of Library Associations and Institutions Core Programme on Preservation and Conservation.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. International Preservation News. Paris: International Federation of Library Associations and Institutions Core Programme on Preservation and Conservation, 2008.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. International Preservation News. International Federation of Library Associations and Institutions Core Programme on Preservation and Conservation, 2008.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.