Natividad, Ma. Shamayne B.  <br/><br/>
Determination of lead at the Currimao International Sea Port 
Ma. Shamayne B. Natividad 
 -  2004 
 - xii, 33 leaves   28 cm.  
<br/><br/> Thesis (BS Environmental Science) -- Mariano Marcos State University-College of Agriculture, Food & Sustainable Development, Batac City  
<br/><br/>Bibliography: leaf 17