Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Base nitrogenada-es#Sense
Base azotata-it#Sense
Kvælstofholdig base-da#Sense
Typpipitoinen emäs-fi#Sense
Base-da#Sense
Αζωτούχα βάση-el#Sense
Nitrogen base-en#Sense
Stickstoffhaltige Verbindung-de#Sense
Stikstofhoudende base-nl#Sense
Base azotée-fr#Sense
Base nitrogenada-pt#Sense