Szczepanowska, Hanna M. Conservation of cultural heritage : Key principles and approaches / - London : Routledge , 2013. - xlvi;317p. ISBN: 9780415674751 3518.0536000000002 Source: 99, 28/08/2013, Classic Book Service Textual Subjects--Topical Terms: History Dewey Class. No.: Y:1.1'P Q3