Mattison, Christopher. Snakes of the world / Chris Mattison. - New York, N.Y. : Facts on File, c1986. - 190 p. : ill. (some col.) ISBN: 081601082X Subjects--Topical Terms: Snakes. LC Class. No.: QL666.O6 / M34 1986 Dewey Class. No.: 597.96�19