Ajayakumar, K.  <br/><br/>
Kudivellam 

 - 3rd ed.  
 - Chengannur  Rainbow  2005 
 - 116p.  
<br/><br/><label>ISBN: </label>81-881-4615-3 
<br/><br/><label>Subjects--Index Terms: </label>Water  Drinking water  Water purification  Water harvesting  Water chemistry 
<br/><br/><label>Universal Decimal Class. No.: </label>628.1=M  / AJA