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WikiPedia: Naguilian, La Union http://www.pasyalan.net/la_union/ //tools.wmflabs.org/geohack/geohack.php?language=v... http://www.census.gov.ph/census2000/index.html http://www.census.gov.ph/data/census2007/index.htm... http://www.launion.gov.ph/index.php?option=com_con... http://elgu2.ncc.gov.ph/naguilian/index.php?id1=22 http://www.nscb.gov.ph/activestats/psgc/default.as...