TitlePhilippine Islands West coast of Luzon:Lingayan Gulf: San Fernando to Tambobo PointContributorAllied Geographical Section Department of Commerce. United States of AmericaDescriptionSoundings in fathoms at mean lower low water. Reproduced by Hydrographic Branch, Sydney.LanguageEnglish
Allied Geographical Section South West Pacific Area Terrain Studies (1944). Monash Uni, accessed 17/04/2026, https://collections.monash.edu/nodes/view/77059