Region I

Manylion Llyfryddiaeth
Awdur Corfforaethol:	Philippines. National Mapping and Resource Information Authority
Fformat:	Map
Iaith:	English
Cyhoeddwyd:	Makati City National Mapping and Resource Information Authority 1990.
Rhifyn:	Ed.1, November, 1989.
Pynciau:	Ilocos Region > Maps.