TY  - RPRT
TI  - Natural and Man-Made Chemicals in North American Soils--Continental-Scale Pilot Study Completed
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 2006
DO  - 10.3133/fs20063115
UR  - https://pubs.usgs.gov/publication/fs20063115
ID  - fs20063115
ER  -