The snakes of the genus Sonora in the United States and Lower California /
Stickel, William H.
The snakes of the genus Sonora in the United States and Lower California / by William H. Stickel - New York : [s.n.], 1938 - 182-190 p. : ill. ; 25 cm - Copeia ; n. 4 .
The snakes of the genus Sonora in the United States and Lower California / by William H. Stickel - New York : [s.n.], 1938 - 182-190 p. : ill. ; 25 cm - Copeia ; n. 4 .