I'm going to take (INTRO) exam, the reference that I have is "CCNA INTRO Exam Certiﬁcation Guide
By Wendell Odom,Copyright© 2004 Cisco Systems, Inc.
Published by:Cisco Press
201 West 103rd Street
Indianapolis, IN 46290 USA"
What I have is right reference to get in the exam?
and after that i'll get the CCENT certification?
please answer me as soon as posible.