Annual review of Canada - United States environmental relations: 1991 Author Valiante M., Muldoon P. Journal/Series International Environmental Affairs | Vol. 4(3); 254 - 272; 19 p. Date 1992 Source IUCN (ID: ANA-048027) Publisher | Place of publication University Press of New England | Hanover, NH, USA Language English Country/Territory United States of America, Canada Subject Environment gen. Keyword Freshwater quality/freshwater pollution Transboundary effects International trade Geographical area North America