English unlimited :  B1 : pre-intermediate : coursebook with e-portfolio / 
Alex Tilbury... [et al.] ; course consultant Adrian Doff. 
 - Cambridge :  Cambridge University Press,  2011. 
 - 160 p. :  ill. ;  30 cm. +  1 DVD-ROM. 
<br/><br/><label>ISBN: </label>9780521697774 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers.<br/>English language--Study and teaching--Foreign speakers--Activity programs.
<br/><br/><label>LC Class. No.: </label>PE1128.A2  / E54 2011