Annual Review of Canada - United States Environmental Relations: 1990 Author Valiante M., Muldoon, P. Journal/Series International Environmental Affairs | Vol. 3(3); 207 - 218; 12 p. Date 1991 Source IUCN (ID: ANA-045945) Publisher | Place of publication University Press of New England | Hanover, NH, USA Language English Subject Environment gen. Keyword Surface water Transboundary effects Cultural heritage International trade Energy conservation/energy production Acid precipitation Freshwater quality/freshwater pollution Geographical area North America