Bailey, Gerry   <br/><br/>
Tylosaurus  

 - New York:  Crabtree Publishing;  2011. 
 - 32 Pages  Colour illustrations  25.5 cm 
 - Smithsonian prehistoric zone .
<br/><br/><label>ISBN: </label>9780778718185 
<br/><br/><label>Dewey Class. No.: </label>J 567.95 BAIL