The National Wildlife System Improvement Act of 1997: Defining the national wildlife refuge system for the twenty-first century Author Tredennick C. Journal/Series Fordham Environmental Law Journal | Vol. 12(1); 41 - 109; 59 p. Date 2000 Source IUCN (ID: ANA-067163) Publisher | Place of publication Fordham Environmental Law Journal | New York, NY, USA Document type Article in periodical Language English Country/Territory United States of America Subject Wild species & ecosystems Keyword Wild fauna Protected area