Madrid : septima conferencia internacional de cartografia : Madrid, Abril-Mayo 1974 = septieme conference imternationale de cartographie : Madrid, Avril-Mai 1974 = seventh international conference on cartography : Madrid, April-May 1974.
Instituto Geográfico y Catastral (Spain)
International Conference on Cartography(7th :1974 :Madrid, Spain)
[Madrid : Instituto Geográfico y Catastral,
1974]
Includes index to places of interest.