Tomsho, Greg. <br/><br/>
Guide to networking essentials / 
Greg Tomsho; [edited by] Steve Helba, Nick Lombardi, Marah Bellegarde. 
 - 6th Ed. 
 - Clifton Park, NY :  Course Technology, Cengage Learning,  2011. 
 - xxi, 658 p 
<br/><br/><label>ISBN: </label>9781111312565 
<br/><br/><label>LCCN: </label>2010943258 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks
<br/><br/><label>Dewey Class. No.: </label>004.6