Commercially speaking : teacher's book 
Commercially speaking teachers book 
 -  96 p. : ill. ; 28 cm. ; pbk. 
 - Oxford   Oxford University Press  1999 
<br/><br/><label>ISBN: </label>9780194572316 
<br/><br/><label>Dewey Class. No.: </label>428.24 IRV  / 2.428.24IRV