Não informado. (1977). Journal of the American Institute for Conservation. American Institute for Conservation of Historic and Artistic Works.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Journal of the American Institute for Conservation. Washington: American Institute for Conservation of Historic and Artistic Works, 1977.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Journal of the American Institute for Conservation. American Institute for Conservation of Historic and Artistic Works, 1977.
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