Communication economics and develpment 
<label>;</label> Jussawalla, M. <label>;</label> Lamberton, D.M. 
 - Oxford  Pergamon  1982 
 - x, 345p.  22 cm. 
<br/><br/><label>ISBN: </label>0080275206 
<br/><br/><label>Dewey Class. No.: </label>380.3  / COM