Bawa K S, Opler P A
Department of Biology, University of Massachusetts, Boston, Massachusetts, 02125.
Office of Endangered Species, Fish and Wildlife Service, U.S. Department of Interior, Washington, D.C., 20240.
Evolution. 1977 Mar;31(1):64-68. doi: 10.1111/j.1558-5646.1977.tb00982.x.