Erwin, Terry L. 1979. "The American connection, past and present, as a model blending dispersal and vicariance in the study of biogeography." In Carabid beetles : their evolution, natural history and classification : proceedings of the first International Symposium of Carabidology. Erwin, Terry L., Ball, George E., Whitehead, D. R., and Halpern, A. L., editors. 355–367. The Hague: Dr. W. Junk b.v. Publishers.