TY  - RPRT
TI  - Blood lead concentrations in mallards from Delevan and Colusa National Wildlife Refuges
AU  - David M. Mauser
AU  - Tonie E. Rocke
AU  - John G. Mensik
AU  - Christopher J. Brand
PY  - 1990
UR  - https://pubs.usgs.gov/publication/1004117
ID  - 1004117
ER  -