Chopra,R, <br/><br/>
How to Correct Common Errors in English  Textual Documents 
R.Chopra 
 - Ist ed-2006. 
 - Assam  Asian Books Private Limited 
 -  22cm. 
<br/><br/><label>ISBN: </label>81-8412-009-5 
<br/><br/><label>Subjects--Index Terms: </label>Grammar G-english Grammer 
<br/><br/><label>Dewey Class. No.: </label>415