What must a reference include?

[Warmrain123]

Hello,

im currently undergoing my application process. I’m a bit confused as what to a reference must include. It says not only names and addresses but full references. My referees are a bit confused as what they have to put additionally. Information about me?
I really *text deleted* get this right.
thanks for the help

 

[ChrisSauer]

Full Contact details including phone and email,a wet signature by them not a typed one and the dates they've known you from or worked from-to