Mapa geomagnético, península ibérica: isogonas; declinación oeste, an̂o. 1970.

Bibliographic Details
Corporate Author: Instituto Geográfico y Catastral (Spain)
Format: Map
Language:Spanish
Published: [Madrid], [publisher not identified] ; 1971.
Subjects:
Description
Item Description:Accompanied by text. 10 pages.
Cartographic material.
Physical Description:1 map : color ; 47 x 62 cm. folded in cover 25 x 17 cm.