Bull J J, Vogt R C, Bulmer M G
Department of Genetics, University of Wisconsin, Madison, Wisconsin, 53706.
Section of Amphibians and Reptiles, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, 15213.
Evolution. 1982 Mar;36(2):333-341. doi: 10.1111/j.1558-5646.1982.tb05049.x.