Crystal, David <br/><br/>
Advanced Conversational English 

 - London:  Longman,  1975. 
 - ix, 128p.;  21 cm 
<br/><br/><label>ISBN: </label>582550742 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Applied Liuguistics<br/>English Usage
<br/><br/><label>Dewey Class. No.: </label>428.5  / CRY