Landslides: Extent and economic significance (Proceedings of the 28th International Geological Congress: Symposium on Land Slides,Washington, DC, 17th July 1989), E. E. Brabb and B. L. Harrod (Eds.). A. A. Balkema,Rotterdam and Brookfield (Vermont), 1989. ISBN 90 6191 876 6, US $65.00 (hardback), xiv + 385 pp |