Mapa hidrogeologico del Ecuador : escala 1/1 000 000 : memoria tecnica Authors Cruz Astudillo, R. Leiva Santillan, I. Pourrut, Pierre Publication Date Jan 01, 1982 Source Horizon / Pleins textes Keywords Hydrogeologie Aquifere Distribution Spatiale Etude Regionale Notice De Carte Language Spanish License Unknown External links Full record on documentation.ird.fr