Baker, Ann. <br/><br/>
Introducing English pronunciation :  a teacher's guide to Tree or three? and Ship or sheep? / 
Ann Baker. 
 - Cambridge :  Cambridge University Press,  1982. 
 - 155 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0521285801 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Pronunciation--Study and teaching.