Crystal, David,  1941- <br/><br/>
Advanced conversational English / 
David Crystal, Derek Davy. 
 - London :  Longman,  1975. 
 - x, 132 p. 
 - Applied linguistics and language study .
<br/><br/><label>ISBN: </label>0582550742 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers.<br/>English language--Conversation and phrase books.<br/>English language--Spoken English.