International legend for hydrogeological maps. 

 - 2a ed. rev. 
 - París :   UNESCO,   1983. 
 - 51p.; 29cm 
<br/><br/> Trabajo realizado por Unesco, International Association of Hydrogeologist (IAH) e International Association of Hydrological Sciences (IASH). 
<br/><br/>Historical development of the Legend and the International Hydrogeological Map of Europe;Introduction;International Legend of Hydrogeological Maps;Select list of Hydrogeological maps 
<br/><br/><label>Subjects--Topical Terms: </label><br/>HIDROLOGIA<br/>MAPA HIDROGEOLOGICO
<br/><br/><label>Universal Decimal Class. No.: </label>556.3[084.3]