TY  - RPRT
TI  - Lead and PCB's in canvasback ducks: Relationship between enzyme levels and residues in blood
AU  - Michael P. Dieter
AU  - Matthew Perry
AU  - Bernard M. Mulhern
PY  - 1977
DO  - 10.1007/bf02220886
UR  - https://pubs.usgs.gov/publication/5221379
ID  - 5221379
ER  -