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1990 IUCN red list of threatened animals / prepared by the World Conservation Monitoring Centre, Cambridge U.K., in association with the IUCN Species Survival Commission and the International Council for Bird Preservation ; guest essay by Nathan Flesness and Tom Foose of the IUCN/SSC Captive Breeding Specialist Group

データ種別	図書
出版情報	Gland, Switzerland : IUCN-the World Conservation Union , 1990