Mackin, Ronald; Webb, John & Scott-Buccleuch,R.L. <br/><br/>
Opec oral drills - Workbook B 

 - Oxford University Press, London  1970 
 - 124,pp 
<br/><br/><label>ISBN: </label>0 19 452045 5 
<br/><br/><label>Dewey Class. No.: </label>428.24 Mac