1958. The occurrence of amphibians and reptiles in saltwater areas, and a bibliography. Bull. Marine Sci. Gulf and Caribbean, 8(1):97 pp., March.
Netting, M. G.
1944. The spineless soft-shelled turtle, Amyda mutica (Le Sueur), in Pennsylvania. Ann. Carnegie Mus., 30:85-88.
Newman, H. H.
1906. The habits of certain tortoises. Jour. Comp. Neurol. Psychol., 16(2):126-52.
Nielsen, A.
1951. Is dorsoventral flattening of the body an adaptation to torrential life? Proc. Internat'l. Assoc. Limnology, 11:264-67.
Nixon, C. W., and Smith, H. M.
1949. The occurrence of kyphosis in turtles. Turtox News, 27(1):28-29, 3 figs., January.