Appendix A starts with the advice

    For more information about re-installing your Red Hat Enterprise Linux
    system, refer to the Technical Whitepapers available online at
    http://www.redhat.com/docs/wp/.

If I click on the link, I'm at the Whitepapers home page, with no clue how
to get to one relevant to this topic.  I tried typing "re-installing" into
the Keyword search box and got 5 hits, none of which was even part of
the Whitepapers.  They were all parts of manuals for RH 7.0, 6.0, and 5.2 (!).

Ok, perhaps that was just a "FYI" reference that can be safely ignored.  But
then on the next page, I get another reference which seems more important:

    To re-install your system, select Perform a new Red Hat Enterprise Linux
    installation and refer to http://www.redhat.com/docs/wp/  as well as
    Chapter 4 Installing Red Hat Enterprise Linux for further instructions.
    
I've found similar useless cross-refernces elsewhere in the documentation.
I can understand not using a direct URL to the document in question because
URLs tend to change over time, but a least you need to give some assistence
in navigating to the document in question.