Lammle, Todd, <br/><br/>
CCNP :  switching study guide / 
Todd  Lammle 
 - 2nd edition 
 - 534 pages :  24 cm. 
<br/><br/><label>ISBN: </label>817656690x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--Switching systems--Examination--Study guide<br/>Telecommunication engineers--Certification--Study guide