A cross reference command requires only one argument, which is the name of the node to which it refers. But a cross reference command may contain up to four additional arguments. By using these arguments, you can provide a cross reference name for Info, a topic description or section title for the printed output, the name of a different Info file, and the name of a different printed manual.
Here is a simple cross reference example:
     @xref{Node name}.
     
which produces
     *Note Node name::.
     
and
See Section nnn [Node name], page ppp.
Here is an example of a full five-part cross reference:
     @xref{Node name, Cross Reference Name, Particular Topic,
     info-file-name, A Printed Manual}, for details.
     
which produces
     *Note Cross Reference Name: (info-file-name)Node name,
     for details.
     
in Info and
See section "Particular Topic" in A Printed Manual, for details.
in a printed book.
The five possible arguments for a cross reference are:
.info
suffix on the file name, since Info readers try appending it
automatically.
     The template for a full five argument cross reference looks like this:
     @xref{node-name, cross-reference-name, title-or-topic,
     info-file-name, printed-manual-title}.
     
  Cross references with one, two, three, four, and five arguments are
described separately following the description of @xref.
  
Write a node name in a cross reference in exactly the same way as in
the @node line, including the same capitalization; otherwise, the
formatters may not find the reference.
  
You can write cross reference commands within a paragraph, but note
how Info and TeX format the output of each of the various commands:
write @xref at the beginning of a sentence; write
@pxref only within parentheses, and so on.