\labelformat ¶Synopsis:
\labelformat{countername}{reftext}
The \labelformat command defines reftext to be output
when the countername is referenced with \ref or
\Ref. Within reftext, the value of countername can
be inserted as #1 (see \newcommand & \renewcommand).
When no \labelformat has been defined, which is commonly the
case, then \ref will output just the bare number that is the
value of countername, as explained below (see \ref & \Ref).
For example:
\labelformat{section}{section~#1}
...
See \ref{sec:intro} for ...
This will generate something like ‘See section~1 for …’;
without the \labelformat, it would output ‘See 1 …’.