Map of Isabela. - Gloria Cunanan Maphouse (Makati, Metro Manila Gloria Cunanan Maphouse, 1989)
Insets: Isabela at a glance -- Road systems & town boundaries -- Conventional signs used on map -- Population of Isabela -- Land area of Isabela -- Towns population & land area.
Keywords: Roads -- Philippines -- Isabela; Isabela (Philippines) -- Maps; Isabela (Philippines) -- Population; Isabela (Philippines, Boundaries).