DDT, Chlordane, Toxaphene and PCB Residues in Newport Bay and Watershed: Assessment of Hazard to Wildlife and Human Health - Reviews of Environmental Contamination and Toxicology - page 101

Fig. 9 Osprey eggshell thickness in relation to egg residue of DDE. Figure 9.7 in Poole ( 1989 )
reproduced with the permission from the author and from Cambridge University Press
Fig. 10 Osprey productivity in relation to egg residue of DDE. Figure 9.8 in Poole ( 1989 ) reproduced
with the permission from the author and from Cambridge University Press