Calayan Island.

Podrobná bibliografie
Korporativní autor:	Philippines. National Mapping & Resource Information Authority
Médium:	Mapa
Jazyk:	English
Vydáno:	Makati, Metro Manila National mapping and Resource Information Authority, 1989.
Edice:	P.C.G.S. 2502
Témata:	Calayan Island > Maps, Topographic.