Why the dinosaurs become extinct 
J. L. Cloudsley-Thompson 
 - Durham, England  Meadowfield Press  1978 
 - 86p ill 21cm 
 - Zoology series .
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 76-81 
<br/><br/><label>ISBN: </label>0904095290 
<br/><br/><label>LCCN: </label>80-231042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dinosauria