Heaton, J.B. <br/><br/>
Longman Preliminary English Skills :  A skills and practice course for the Cambridge Preliminary English Test / 
J.B. Heaton. 
 - London :  Longman,  1990. 
 - 123 p.  ill. 
<br/><br/><label>ISBN: </label>0-582-01843-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English Languages--Practice course