TY - RPRT TI - An economic and geographic appraisal of a spatial natural hazard risk: a study of landslide mitigation rules AU - R. L. Bernknopf AU - D.S. Brookshire AU - R. H. Campbell AU - C.D. Shapiro PY - 1988 DO - 10.1068/a200621 UR - https://pubs.usgs.gov/publication/70014712 ID - 70014712 ER -