TY  - RPRT
TI  - Persistence and changes in bioavailability of dieldrin, DDE and heptachlor epoxide in earthworms over 45 years
AU  - W. Nelson Beyer
AU  - Robert W. Gale
PY  - 2012
DO  - 10.1007/s13280-012-0340-z
UR  - https://pubs.usgs.gov/publication/70042981
ID  - 70042981
ER  -