Thomas, R. A. <br/><br/>
Galápagos terrestrial snakes: biogeography and systematics.     
Thomas, R. A. 
 -  1997 
 - 19-40.  Article 
<br/><br/><br/>English 
<br/><br/><label>Subjects--Index Terms: </label>Galápagos terrestrial snakes: biogeography and systematics.   
<br/><br/><label>Dewey Class. No.: </label>597.96  597.96