International legend for hydrogeological maps.
Subtitle: Leyenda internacional para mapas hidrogeológicos. Légende internationale des cartes hydrogéologiques. Mezhdunarodnai͡a︡ legenda k gidrogeologicheskim kartam.
Published: 1970
Place of publication: [Paris
Language: eng
Number of pages: 101
Subjects: Maps -- Symbols.; Hydrogeology -- Maps -- Symbols.
Other titles: Leyenda internacional para mapas hidrogeológicos.; Légende internationale des cartes hydrogéologiques.; Mezhdunarodnai͡a︡ legenda k gidrogeologicheskim kartam.
Notes: Bibliography: 79-83.
English, French, Russian and Spanish.