Shrock , Robert R. . <br/><br/>
Principles of Invertebrate Paleontology /  Textual Documents 
Robert R. Shrock, W. H. Twenhofel. 
 - 2nd ed. / 
 - Delhi :  CBS Publishers & Distributors ,  1953. 
 - xx, 816p. :  ill ;  22cm . 
<br/><br/>Index 
<br/><br/><label>ISBN: </label> Rs. 100.00 (PB) 
<br/><br/><label>Subjects--Index Terms: </label>Invertebrate Paleontology Geology PG-Geology G-Geology G-Geology G-Geology G-Geology Zoology T/G-Zoology 
<br/><br/><label>Dewey Class. No.: </label>560  / Sh 83 Pr