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Displaying items 71-80

Ensenyament a distància (6)
Human voice (6)
Organs (6)
Tecnologia de la informació (6)
Triple Hèlix (6)
Vowel systems (6)
338 - Economic situation. Economic policy. Management of the economy. Economic planning. Production. Services. Prices (5)
620 - Materials testing. Commercial materials. Power stations. Economics of energy (5)
7 - the arts. Recreation. Entertainment. Sport (5)
79 - Recreation. Entertainment. Games. Sport (5)