D'Souza Y K <br/><br/>
Communication today and tomorrow. 
D'Souza Y K 
 -  1999 
<br/><br/><label>Standard No.: </label>72123 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>4.1'N8, N9