Gilbert, Judy B. <br/><br/>
Clear speech  : Pronunciation and Listening Comprehension in Nort American English : Teacher's Resource Book  

 - 2nd ed. 
 - Cambridge  Cambridge University Press  1993 
 - 86 s.   26 cm.  10AGF-GilJ-Cle:N 
<br/><br/><label>ISBN: </label>521421160 9780521421164