Region I

Bibliografiska uppgifter
Institutionell upphovsman:	Philippines. National Mapping and Resource Information Authority
Materialtyp:	Karta
Språk:	English
Publicerad:	Makati City National Mapping and Resource Information Authority 1990.
Upplaga:	Ed.1, November, 1989.
Ämnen:	Ilocos Region > Maps.