Hawkey, Roger <br/><br/>
A modular approach to testing English language skills :  the development of the Certificates in English Language Skills (CELS) examinations / 
Roger Hawkey. 
 - Cambridge ;  Cambridge University Press,  2004. 
 - xii, 564 p. :  24 cm. 
 - Studies in language testing ;  16. .
<br/><br/><label>ISBN: </label>0521013321 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENGLISH LANGUAGE<br/>ENGLISH LANGUAGE<br/>ENGLISH LANGUAGE