1. Evolution of Melanism;Kettlewell,1973
2. Majerus, M.E.N.: Melanism: Evolution in Action. Oxford: Oxford University Press; 1998:338.
3. The genetics of some mimetic forms of Papilio dardanus, Brown, and Papilio glaucus;Clarke;Linn J Genet,1959
4. The genetics of the mimetic butterfly Papilio glaucus;Clarke;Ecology,1962
5. Abnormalities of wing pattern in the Eastern Tiger Swallowtail butterfly, Papilio glaucus;Clarke;System Entomol,1983