TY - BOOK TI - ICOMOS (International council on monuments and sites) General assembly and international symposium, 9th, Laussanne, Switzerlan, October 6th-11th, 1990: ICOMOS, a quarter of a century, achievements and future prospects: symposium papers PY - 1990/// CY - Bern, Switzerland PB - The Swiss national committee KW - Ճարտարապետություն ER -