1. Allozyme polymorphism in plant populations.;Allard,1971
2. Evidence for adaptive races among oriental fruit moth parasites.;Allen;Proc. 10th Int. Congr. Entomol., Montreal, 1956,1958
3. Polymorphism in continental and island populations of.;Ayala;Drosophila willistoni. Proc. Natl. Acad. Sci. U.S.,1971
4. “The Genetics of Colonizing Species,”;Baker,1965
5. Foreign exploration for beneficial organisms.;Bartlett,1964