TitleSignal communication:telephone system:Central LuzonContributorAllied Geographical SectionDescriptionRizal has an independent provinicial phone system, 30 phones, 84 mies of line. Probably connects all municipalities. Based on Philippine islands A.M.S S401.LanguageEnglish
Allied Geographical Section South West Pacific Area Terrain Studies (1944). Monash Uni, accessed 15/04/2026, https://collections.monash.edu/nodes/view/77077
