TitleMosaic of coastal mountain range (Ilocos or Malaya Mountains):on the coastal plain, to left, Highway No 3 runs northward:Abra River Valley is shown at rightContributorAllied Geographical SectionLanguageEnglish
Allied Geographical Section South West Pacific Area Terrain Studies (1944). Monash Uni, accessed 13/05/2026, https://collections.monash.edu/nodes/view/76688