Frank, Christine  <br/><br/>
Challenge to think /  
Christine Frank, Mario Rinvolucri, Marge Berer. 
 - 9th impr. 
 - Oxford :   Oxford University Press,   1991. 
 - 80 s. :  il. ;  25 cm.  10AMe-FraC-Cha 
<br/><br/><label>ISBN: </label>019453250x 9780194532501 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Język angielski--studia i nauczanie--zadania i ćwiczenia