Palaspas, Annie D.  <br/><br/>
Nitrate leaching rate along the soil profile of Magnuang, Batac, Ilocos Norte  
Annie D. Palaspas  
 -  2006  
 - xiii, 38 leaves   28 cm.  
<br/><br/> Thesis (BS Environmental Science) -- Mariano Marcos State University-College of Agriculture, Food & Sustainable Development, Batac City   
<br/><br/>Bibliography: leaves 30-31