Collie, Joanne <br/><br/>
Speaking 4 
/ Joanne Collie, Stephen Slater 
 - 7th print. 
 - Cambridge :   Cambridge University Press,   2002. 
 - 104 s. ;  25 cm.  10AGR-ColJ-Spe:4 
<br/><br/><label>ISBN: </label>0521399726