Snakes of the world : a catalogue of living and extinct species - Williams, Kenneth L., 1934-; Wallach, Van; Boundy, Jeff (CRC Press, 2014)
Previous edition published as: Snakes of the world / by Kenneth L. Williams and V. Wallach: Malabar, Fla. : Krieger Pub. Co., 1989-
Keywords: Snakes -- Classification.; Extinct reptiles.; elektronické knihy; electronic books