Mortimer, Colin <br/><br/>
Contractions :  a pronunciation practice book / 
by Colin Mortimer ; drawings by Daria Gan 
 - Cambridge :  Cambridge University Press,  1977 
 - 32 p. :  ill. ;  21 cm. 
 - Cambridge English language learning .
<br/><br/><label>ISBN: </label>0521215331 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Pronunciation--Problems, exercises, etc<br/>English language--Textbooks for foreigners