TY  - RPRT
TI  - Within- and among-clutch variation of organochlorine residues in eggs of black-crowned night-herons
AU  - T. W. Custer
AU  - G. Pendleton
AU  - H. M. Ohlendorf
PY  - 1990
DO  - 10.1007/bf00454750
UR  - https://pubs.usgs.gov/publication/5222784
ID  - 5222784
ER  -