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Dyfyniad Arddull ChicagoSörensen, Stefan. On the Possibilities of Changing the Annoyance Reaction to Noise: By Changing the Attitudes to the Source of Annoyance. Stockholm, 1970.
Dyfyniad MLASörensen, Stefan. On the Possibilities of Changing the Annoyance Reaction to Noise: By Changing the Attitudes to the Source of Annoyance. 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.