Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Underbevattning-sv#Sense
Riego subterráneo-es#Sense
Underground irrigation-en#Sense
Ondergrondse irrigatie-nl#Sense
Maanalainen kastelujärjestelmä-fi#Sense
Υπόγειος άρδευσις-el#Sense
Aubirrigation-en#Sense
Irrigation souterraine-fr#Sense
Unterirdische Bewässerung-de#Sense
Bevattning underifrån-sv#Sense
Subirrigazione-it#Sense
Υπάρδευσις-el#Sense