The control of noise in ventilation systems :  A designers' guide / 
Ed. by m. a. iqbal, t.k. willson, r.j. Thomas ; atkins research and development 
 - 107 páginas 
<br/><br/><label>ISBN: </label>0470428120 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ventilación--Ruido controlado
<br/><br/><label>LC Class. No.: </label>TH681  / A84