Paatanjali Premchand <br/><br/>
Sanchar-siddhant ki rooprekha. 

 - Ghaziabad  K L Pachauri Prakashan      2008 
 - 160p.  cm. 
<br/><br/><label>Standard No.: </label>108033 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>4341, P8