1955. Observations on the sexual behavior of captive turtles. Lloydia, 18(2):95-99, June.
Lesueur, C. A.
1827. Note sur deux especes de tortues du genre Trionyx Gffr. St. H. Mém. Mus. Hist. Nat. Paris, 15:257-68, 2 pls.
Linsdale, J. M.
1927. Amphibians and reptiles of Doniphan County, Kansas. Copeia, 1927(164):75-81, July-September.
1940. Amphibians and reptiles in Nevada. Proc. Amer. Acad. Arts Sci., 73(8): 197-257, 29 figs., May.
Linsdale, J. M., and Gressitt, J. L.
1937. Soft-shelled turtles in the Colorado River basin. Copeia, 1937 (4):222-225, 3 figs., December 31.
Little, E. L., and Keller, J. G.
1937. Amphibians and reptiles of the Jornada Experimental Range, New Mexico. Copeia, 1937(4):216-22, December 31.