Hobbs 1969. On the distribution and phylogeny of the crayfish genus Cambarus. Holt P. C., [Ed]. The distributional history of the biota of the southern Appalachians. Part 1. Invertebrates., The distributional history of the biota of the southern Appalachians. Part 1. Invertebrates. Research Division Monograph 1., 1969: 93-178. Chapter pagination: 93-178