Abbs Brian. <br/><br/>
Discoveries,  Students' Book 1   : Students' Book 1 

 - Hong Kong   : Longman   , 1992 
 - 90  p. :   il. ;  
<br/><br/><label>ISBN: </label>0582514002 
<br/><br/><label>Universal Decimal Class. No.: </label>7284