TY  - RPRT
TI  - USGS Facts on Disc
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 2007
DO  - 10.3133/ofr2002210
UR  - https://pubs.usgs.gov/publication/ofr2002210
ID  - ofr2002210
ER  -