TY  - RPRT
TI  - Soil geochemical signature of urbanization and industrialization – Chicago, Illinois, USA
AU  - W.F. Cannon
AU  - John D. Horton
PY  - 2009
DO  - 10.1016/j.apgeochem.2009.04.023
UR  - https://pubs.usgs.gov/publication/70037001
ID  - 70037001
ER  -