Cameron, David, <br/><br/>
Mastering modern english 
by David Cameron 
 - 1st. 
 - Hyderabad:  Orient longman ltd.,  1993. 
 - 195p:  23cm. 
<br/><br/><label>ISBN: </label>0-86131-013-6 
<br/><br/><label>Subjects--Index Terms: </label>Linguistics 
<br/><br/><label>Dewey Class. No.: </label>410