in/with reference to

in reference to

Regarding; having to do with; in connection with. We received an anonymous tip in reference to the ongoing investigation. In reference to my opponent's remarks, let me state for the record that I have always condemned hate speech in all forms.
See also: reference

in reference to someone or something

 and with reference to someone or something concerning or about someone or something;
in connection with someone or something. What shall we do in reference to Bill and his problem? With reference to what problem?
See also: reference

with reference to

Also, with regard or respect to . See in regard to.
See also: reference

in/with ˈreference to

(formal or written) used to say what you are talking or writing about: With reference to your letter of July 22...
See also: reference