Não informado. (1952). Studies in conservation. International Institute for the Conservation of Historic and Artistic.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Studies in Conservation. London: International Institute for the Conservation of Historic and Artistic, 1952.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Studies in Conservation. International Institute for the Conservation of Historic and Artistic, 1952.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.