Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3606
Is Reference of Visual photometry-en#Sense
Visuel fotometri-da#Sense
Visuaalinen valonmittaus-fi#Sense
Οπτική φωτομετρία-el#Sense
Fotometría visual-es#Sense
Visuele fotometrie-nl#Sense
Fotometria visiva-it#Sense
Visuell fotometri-sv#Sense
Photométrie visuelle-fr#Sense
Visuelle Photometrie-de#Sense
Fotometria visual-pt#Sense