Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Indagine per campione-it#Sense
Enquête par sondage-fr#Sense
Otantatutkimus-fi#Sense
Steekproefenquête-nl#Sense
Sample survey-en#Sense
Stichprobenerhebung-de#Sense
Urvalsundersökning-sv#Sense
Inquérito por amostragem-pt#Sense