TY  - RPRT
TI  - Digital data sets describing water use, toxic chemical releases, metropolitan areas, and population density of the conterminous United States
AU  - Curtis V. Price
AU  - Rick M. Clawges
PY  - 1999
DO  - 10.3133/ofr9978
UR  - https://pubs.usgs.gov/publication/ofr9978
ID  - ofr9978
ER  -