SHROCK,  ROBERT.R TWENHOFEL, WILLIAM .H <br/><br/>
PRINCIPLES OF INVERTEBRATE PALEONTOLOGY 

 - 2nd Ed. 
 - New Delhi  C.B.S. Publishers and Distrbutors, New Delhi   2002 
<br/><br/><label>Dewey Class. No.: </label>562  / SHR/PR