Ilagan.

Sonraí bibleagrafaíochta
Údar corparáideach:	Philippines. Bureau of Coast and Geodetic Survey
Formáid:	LÉARSCÁIL
Teanga:	English
Foilsithe / Cruthaithe:	Manila Philippine Coast and Geodetic Survey 1983.
Sraith:	P.C.G.S. 2506
Ábhair:	Ilagan (Isabela) > Maps, Topographic.