00516cam a2200169 4500 440314190 TxAuBib 20160307120000.0 941117s1939||||||||||||||||||||||||eng|u TxAuBib Ditmars, Raymond Lee, 1876-1942. Field book of North American snakes / Raymond Lee Ditmars. Garden City, NY : Doubleday, 1939. 305 p. : 48 plates. 20160307. OGLNF.