Singh, Krishna Kumar. <br/><br/>
How to Write Correct English / 
By Krishna Kumar Singh. 
 - 1st Ed. 
 - New Delhi :  P H PUBLISHING CORPORATION,  2018. 
 - 236p. ;  00 cm. 
<br/><br/><label>ISBN: </label>9788176483056 
<br/><br/><label>Dewey Class. No.: </label>420  / SIN