TY  - RPRT
TI  - A topographic field trip of Washington, D.C. - a cartographic multimedia application
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1998
DO  - 10.3133/fs02598
UR  - https://pubs.usgs.gov/publication/fs02598
ID  - fs02598
ER  -