TY  - RPRT
TI  - Pesticide and PCB of common eider, herring gull, and great black-backed gull eggs
AU  - Robert C. Szaro
AU  - N. C. Coon
AU  - E. Kolbe
PY  - 1979
DO  - 10.1007/bf02026961
UR  - https://pubs.usgs.gov/publication/5221455
ID  - 5221455
ER  -