to direct for information or anything required

He referred me to books on astrology.

to direct the attention or thoughts of

The asterisk refers the reader to a footnote.

to hand over or submit for information, consideration, decision, etc.

to refer the argument to arbitration.

to assign to a class, period, etc.; regard as belonging or related.

to have relation; relate; apply.

to direct attention, as a reference mark does.

to have recourse or resort; turn, as for aid or information

to refer to one's notes.

to make reference or allusion

The author referred to his teachers twice in his article.