Conant, Roger  1909-2003 <br/><br/>
A review of the water snakes of the genus Natrix in Mexico / 
Roger Conant. 
 -- New York :   [s.n.],   1969 
 - 140p., [10]p. de lám. -- 
 (Bulletin of the American Museum of Natural History ;  142, 1).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Serpientes
<br/><br/><label>Universal Decimal Class. No.: </label>598.12