El Salvador
Subtitle: Indice anotado de los trabajos aerofotográficos y los mapas topográficos y de resursos naturales.  Annotated index of aerial photographic coverage and mapping of topography and natural resources.
Published: 1965
Place of publication: [Washington]
Language: spa
Number of pages: 11
Subjects: El Salvador -- Surveys -- Maps
Other titles: El Salvador: Annotated index of aerial photographic coverage