Jeffrey, Parker. <br/><br/>
Textbook of zoology : invertebrates /  
Jeffrey Parker and William A Haswell; edited by A.J. Marshall and W.D. Williams. 
 - 7th ed /   . 
 - New Delhi :   C B S Publishers and Distributors ,   1972 (rep. 1992). 
 - V-1 :   ills ;   24cm .  
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<br/><br/><label>ISBN: </label>812390035X  Rs. 160.00 
<br/><br/><label>Subjects--Index Terms: </label>INVERTEBRATES 
<br/><br/><label>Dewey Class. No.: </label>592  / PAR/T