Socio economic (profile):   San Nicolas Ilocos Norte. 

 - [s.l] :  [s.n],  [n.d]. 
 - 112 pages ;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>San Nicolas, Ilocos Norte (Philippines) --Social conditions<br/>San Nicolas, Ilocos Norte (Philippines) --Economic conditions
<br/><br/><label>LC Class. No.: </label>HC 457 F64 S67 [n.d.] F