Sharma, Ajay <br/><br/>
Modern electronic communication / 
Ajay Sharma and R. K. Sinha 
 - Delhi :  Dhanpat Rai Publishing Company Ltd. Pvt,  1999. 
 - 623 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>9788187433033 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic communication
<br/><br/><label>Dewey Class. No.: </label>621.382  / SHA/M