TY  - RPRT
TI  - Eggshell thickness and DDE residue levels in vlulture eggs
AU  - L.F. Kiff
AU  - David B. Peakall
AU  - M.L. Morrison
AU  - S.R. Wilbur
PY  - 1983
UR  - https://pubs.usgs.gov/publication/5211369
ID  - 5211369
ER  -