Johnson, Keith <br/><br/>
Communicate in writing :  teacher's book (with answer key)/ 
Keith Johnson 
 - Harlow, Essex :  Longman,  1981 
 - 35 p. ;  22 cm. 
<br/><br/><label>ISBN: </label>0582748488 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Text- books for foreigners<br/>English language--Writing--Programmed instruction