TY - RPRT TI - GIS applications in seismic loss estimation model for Portland, Oregon water and sewer systems AU - Leon Ru-Liang Wang AU - Joyce C. Wang AU - Isao Ishibashi PY - 1991 DO - 10.3133/ofr91441f UR - https://pubs.usgs.gov/publication/ofr91441F ID - ofr91441F ER -