Calayan Island.

Bibliografiska uppgifter
Institutionell upphovsman:	Philippines. National Mapping & Resource Information Authority
Materialtyp:	Karta
Språk:	English
Publicerad:	Makati, Metro Manila National mapping and Resource Information Authority, 1989.
Serie:	P.C.G.S. 2502
Ämnen:	Calayan Island > Maps, Topographic.