Chorafas, Dimitris N. <br/><br/>
Telephony :  today and tomorrow / 
Dimitris N. Chorafas. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1984. 
 - xii, 292 pages :  illustrations ;  23 cm. 
 - Prentice-Hall series in data processing management .
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--Technological innovations.<br/>Telephone--Technological innovations.