Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6831
Is Reference of Aquedutos subterrâneos-pt#Sense
Kulvertakvedukt-sv#Sense
Subway-en#Sense
Duikervormig aquaduct-nl#Sense
Tunneli-fi#Sense
Maanalainen käytävä-fi#Sense
Tajeas-es#Sense
Μικροί οχετοί διαβάσεως-el#Sense