Proceedings and resolutions / recommendations of the 18th Session of the General Assembly of IUCN - The World Conservation Union Corporate author IUCN Date 1991 Source IUCN (ID: MON-045399) Publisher | Place of publication IUCN | Gland, Switzerland ISBN 2-8317-0066-3 Pages 269 p. Document type Document of international organization Conference name | place | date 18th Session of the General Assembly of IUCN - The World Conservation Union | Perth | 19901128 -19901205 Language English Field of application International Subject Wild species & ecosystems Keyword Institution Website www.iucn.org