Não informado. (1973). Noise Control Engineering. Institute of Noise Control Engineering.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Noise Control Engineering. Bedford, Mass: Institute of Noise Control Engineering, 1973.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Noise Control Engineering. Institute of Noise Control Engineering, 1973.
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