Schatt, Stanley. <br/><br/>
Voice/data telecommunications for business / 
Stan Schatt, Steven Fox. 
 - Englewood Cliffs, N.J. :  Prentice Hall,  c1990. 
 - viii, 384 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0131078895 
<br/><br/><label>LCCN: </label>89-035267 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business communication.<br/>Telecommunication.
<br/><br/><label>LC Class. No.: </label>TK5102.5  / .S353 1990 
<br/><br/><label>Dewey Class. No.: </label>651.7