International Council on Monuments and Sites & Petzet, M. International charters for conservation and restoration (2nd edition.).
Citación estilo ChicagoInternational Council on Monuments and Sites and Michael Petzet. International Charters for Conservation and Restoration. 2nd edition.
Cita MLAInternational Council on Monuments and Sites and Michael Petzet. International Charters for Conservation and Restoration. 2nd edition.
Warning: These citations may not always be 100% accurate.