The Challenge to our cultural heritage :

ACKU
edited by Yudhishthir Raj Isar ; co-sponsored by United Nations Educational, Scientific, and Cultural Organization (UNESCO) and the Smithsonian Institution in cooperation with the United States Committee of the International Council on Monuments and Sites (US/ICOMOS) and the National Trust for Historic Preservation.
Washington, D.C. : Smithsonian Institution Press, ©1986.
252 pages : illustrations ; 23 cm.
English
0874745438
Historic preservation – Congresses.
Historic sites – Conservation and restoration – Congresses.
Cultural property – Protection – Congresses.
Architecture – Conservation and restoration – Congresses.
CC135. / C435 1986
Library of Congress Classification / Monograph
3ACKU000508381