Castle, William E. <br/><br/>
The effect of selective narrow-band filtering on the perception of certain English vowels / 
by William E. Castle 
 - London :  Mouton & Co.,  1964 
 - 209 p. :  ill. ;  26 cm. 
 - Janua linguarum. Series practica ;  13 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Vowels