Lagda, Rachelle Mae A.  <br/><br/>
Groundwater quality assessment in residential areas of Sarrat, Ilocos Norte 
Rachelle Mae A. Lagda 
 -  2006 
 - xv, [67] leaves   28 cm.  
<br/><br/> Thesis (BS Environmental Science) -- Mariano Marcos State University-College of Agriculture, Food and Sustainable Development, Batac City   
<br/><br/>Bibliography: leaf 44