David, Hover <br/><br/>
Think twice  : communication activities for beginner to intermediate students 
/ David Hover 
. - Cambridge  : Cambridge University press, 1986
. - 96p.  : Ill., couv. ill. en coul.  ; 25 cm. 
 - Student's book .
<br/><br/><label>ISBN: </label>0521273854 0521273862 
<br/><br/><label>Source: </label> Fonds S.300 
<br/><br/><label>Universal Decimal Class. No.: </label>800.7