Castillo, Jerome A., et al.  <br/><br/>
Soil investigation at Manila north road, Currimao, Ilocos Norte  
Jerome A. Castillo, et al.  
 -  2008  
 - viii, [149] leaves   28 cm.  
<br/><br/> Thesis (BS Civil Engineering) -- Mariano Marcos State University-College of Engineering, Batac City   
<br/><br/>Bibliography: leaf 23