Aircraft engine noise research :  report / 
by the Research Sub-Committee of the [Noise Advisory] Council. 
 - London :  H.M.S.O. [for the Department of the Environment],  1974. 
 - [5],15p. 
<br/><br/><label>ISBN: </label>0117507172 (sd) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Jet planes--Noise.<br/>Aerodynamic noise.