Raup, David M. <br/><br/>
Principles of paleontology/  
David M. Raup and Steven M. Stanley 
 - 2d ed. 
 - New Delhi:   CBS publishers and distributors,   1985. 
 - x, 481 p. :  ill. 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontology