TY  - RPRT
TI  - Environmental pollutants and eggshell thickness: Anhingas and wading birds in the eastern United States
AU  - Harry M. Ohlendorf
AU  - Erwin E. Klaas
AU  - T. Earl Kaiser
PY  - 1979
UR  - https://pubs.usgs.gov/publication/ssrw216
ID  - ssrw216
ER  -