Prasad, S. N. <br/><br/>
A text book of invertebrate zoology / 
by S. N. Prasad 
 - 15th ed. 
 - New Delhi :  Kitab Mahal ,  1974 . 
 - 832 p.  Hard Back 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vertebrates<br/>Invertebrates<br/>Phylum protozoa<br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>596  / PRA-T