Panko, R. R. <br/><br/>
Business data networks and security /  
Raymond R. Panko, Julia L. Panko. 
 - 9th ed. 
 - Boston :    Pearson,    c2013. 
 - xxiv, 500 p. :    ill. (chiefly col.) ;    24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780133080452 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business enterprises -- Computer networks -- Security measures.<br/>Computer networks -- Management.
<br/><br/><label>LC Class. No.: </label>HD30.37   /  .P36 2013