Odom, Wendell. <br/><br/>
CCENT/CCNA ICND1 640-822 official cert guide / 
Wendell Odom. 
 - Third edition. 
 - Indianapolis, Ind. :  Cisco Press,  2012. 
 - xlvii, 736 pages :  illustrations ;  24 cm. +. 
<br/><br/><label>ISBN: </label>9781587204258 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Examinations--Study guides.<br/>Electronic data processing--Personnel--Certification.