Cambridge english empower B2 
/ Lynda Edwards, Ruth Gairns, Stuart Redman , Wayne Rimmer 
. - Cambridge  : Cambridge Univerity press, 2015
. - 254 p  : ill.  ; 30 cm. 
<br/><br/><label>ISBN: </label>9781107468917 
<br/><br/><label>Source: </label> Achat 
<br/><br/><label>Universal Decimal Class. No.: </label>372.880.20