Stamper, David A. <br/><br/>
Business data communications / 
David A. Stamper. 
 - 3rd ed. 
 - Redwood City, Calif. :  Benjamin/Cummings Pub. Co.,  c1991. 
 - xxxix, 620 p. :  ill. (some col.) 
<br/><br/><label>ISBN: </label>0805377204 
<br/><br/><label>LCCN: </label>93035117     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.<br/>Computer networks.