Perez, Marieto M.  <br/><br/>
Guidebook on water supply protection program / 
Marieto M. Perez 
 - Manila :  Department of Health,  2010. 
 - The Philippine Sustainable Sanitation Knowledge Series .
<br/><br/><label>ISBN: </label>9789710569229 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water Supply