Wallwork, Adrian <br/><br/>
Discussions A - Z : advanced  : a resource book of speaking activities  
/ Adrian Wallwork 
 - 6th print. 
 - Cambridge :   Cambridge University Press,   2001. 
 - 113 s. ;  30 cm.  10AGR-WalA-Dis 
<br/><br/><label>ISBN: </label>0521559790 9780521559799