TY  - RPRT
TI  - Trial monitoring of pesticides in wings of mallards and black ducks
AU  - R.G. Heath
AU  - R. M. Prouty
PY  - 1967
DO  - 10.1007/bf01684150
UR  - https://pubs.usgs.gov/publication/5221280
ID  - 5221280
ER  -