Zwikker, C. <br/><br/>
Sound Absoebing Materials 

 - London  Lserier Publishing Co.  1949 
 - ix, 174p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>C31:358
<br/><br/><label>Dewey Class. No.: </label>C31:358  / H9