Não informado. (2002). The Conservator. International Institute for Conservation of Historic and Artistic Works, United Kingdom Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. The Conservator. London: International Institute for Conservation of Historic and Artistic Works, United Kingdom Group, 2002.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. The Conservator. International Institute for Conservation of Historic and Artistic Works, United Kingdom Group, 2002.
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