Campbell, Colin <br/><br/>
Matrix : pre-intermediate  : teacher`s book 
/ Colin Campbell, Kathy Gude, Michael Duckworth 
 - Oxford :  Oxford University Press,   2002. 
 - 120 s. ;  30 cm.  10AP-Matrix:P:N 
 - Matrix .
<br/><br/><label>ISBN: </label>0194703150 194369706