TY  - BOOK
AU  - Rigonan, Donalyn R. 
TI  - Water quantity assessment of drinking water in selected urban areas in Batac, Ilocos Norte 
PY  - 2006///
N1  - Thesis (BS Environmental Science) -- Mariano Marcos State University-College of Agriculture, Food and  Sustainable Development, Batac City; Bibliography: leaf 24
ER  -