Textbook of zoology invertebrates / 
edited by A. J. Marshall and W. D. Williams 
 - 7th ed. 
 - Delhi :  A. I. T. B. S. Publishers & Distributors ,  1005. 
 - 574 p. ;  ill. :  23 cm. 
<br/><br/>It includes bibliographical information and index. 
<br/><br/><label>ISBN: </label>8174730311 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology<br/>Invertebrates 
<br/><br/><label>Dewey Class. No.: </label>592  / ZOO