BOOK REVIEWSBOOK REVIEWSde La FayetteLouiseProfDept. External Affairs and International Trade, Canada**The ideas expressed are personal, and are not necessarily those of the Department of External Affairs or the Government of Canada.0519913817379FreestoneD., UlstraT., eds., The North Sea: Perspectives on Regional Environmental Co-operation, Graham & Trotman/M. Nijhoff Publishers, London/Dordrecht/Boston, 1990, 356 pp., Dfl. 245/$ 145/£ 89.50.Copyright © T.M.C. Asser Press 19911991T.M.C. Asser PresspdfS0165070X00005350a.pdfdispartBook Reviews1.For contemporary accounts of the Third Conference, see Financial Times (5–8 March 1990); UlstraT., “The Third International North Sea Conference