@misc{indiciae4eedf6baa848, title = {Eggshell thickness and DDE residue levels in vlulture eggs}, author = {L.F. Kiff and David B. Peakall and M.L. Morrison and S.R. Wilbur}, year = {1983}, url = {https://pubs.usgs.gov/publication/5211369}, note = {Source identifier: 5211369} }