Leech, G. <br/><br/>
A communicative grammar of english. 

 - 3rd 
 - London:  Routledge,  2002. 
 - viii, 440 p.:  ill.;  23 cm. 
<br/><br/> includes an  index. 
<br/><br/><label>ISBN: </label>9781138836891 
<br/><br/><label>LC Class. No.: </label>DUCE PE1128.L45