Mange, Gary E. <br/><br/>
Background report on outdoor-indoor noise reduction calculation procedures employing the exterior wall noise rating(EWNR) method 
by Gary E. Mange, Steven R. Skale, Louis C. Sutherland 
 - Washington, D.C. :  U.S. Government Printing Office,  1978 
 - v, 55 p. :  charts ;  28 cm. 
<br/><br/> FHWA-TS-77-220 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Noise--Measurement.<br/>Traffic noise--Measurement.<br/>Noise control.
<br/><br/><label>Dewey Class. No.: </label>US 620.23  / M 313 (March, 1978)