There are four different cross reference commands:
@xref
*Note name: node..
@ref
@xref for Info; produces just the reference in the printed
manual without a preceding `See'.
@pxref
p is for `parenthesis'.)
@inforef
(The @cite command is used to make references to books and
manuals for which there is no corresponding Info file and, therefore,
no node to which to point. See @cite.)