↑Eschmeyer, W.N. (ed.) (2004) Catalog of fishes. Updated database version of January 2004., Catalog databases as made available to FishBase in January 2004.
↑Ceas, P.A. and B.M. Burr (2002) Etheostoma lawrencei, a new species of darter in the E. spectabile species complex (Percidae: subgenus Oligocephalus), from Kentucky and Tennessee., Ichthyol. Explor. Freshwat. 13(3):203-216.