Geographic Variation in the North American Cyprinid Fish, Hybopsis gracilis

by Leonard J. Olund; Frank B. Cross

1907. A check list of the freshwater fishes of Canada. Proc. Biol. Soc. Washington. 20:89-120.

Forbes, Stephen Alfred, and Robert Earl Richardson.

1920. The fishes of Illinois. Illinois Nat. Hist. Survey. 1-357.

Frye, J. C., and A. B. Leonard.

1952. Pleistocene geology of Kansas. Kansas Geol. Survey. 99:1-230.

Gilbert, Chas. H.

1885. Second series of notes on the fishes of Kansas. Bull. Washburn Lab. Nat. Hist., 1(3):97-99.

Gill, Theodore.

1876. Report on ichthyology. In report of explorations across the Great Basin of the territory of Utah in 1859, by Captain J. H. Simpson. Appendix L. 385-431.

Gerard, Charles.