". . .a comprehensive book, well presented and clearly written. "---The New Zealand Statistician". . .Chapters contain some theory but they are mainly directed toward application with some numerical illustrations which generally use simulated sets to be found in the Appendix. . .The level of exposition is generally clear and direct. . .the book should prove useful to practising statisticians. "---Short Book Reviews (International Statistical Institute)". . .the authors have carried out the helpful task of bringing together into a useful reference volume a large amount of material on an interesting topic which has previously been scattered throughout the literature. "---Royal Statistical Society