An introduction to Protozoa/ 
Sandhu,G.S. 
 - 1st.ed. 
 - New Delhi:  Campus books,  2010. 
 - 205 
<br/><br/><label>ISBN: </label>8187815779 
<br/><br/><label>Dewey Class. No.: </label>579.4  / SAN/I