TY  - RPRT
TI  - Abstracts of papers presented at the Geographic information systems symposium, June 2-4, 1987, Reston, Virginia
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1987
DO  - 10.3133/ofr87314
UR  - https://pubs.usgs.gov/publication/ofr87314
ID  - ofr87314
ER  -