If you have lectures on your timetable called something like "Study Skills" or "Research Skills", this sort of thing will be covered in those. It would be very unusual for a uni not to provide teaching on these very basic aspects of essay writing. I know mine hammered home referencing my entire first year, then repeated some of it in the first term of the second year, just to be sure.
If you can't see anything relevant on your timetable and you can't find anything on your library website about extra skills lectures or written guides, email your course leader and ask for help. I guarantee that they'd rather you asked, than struggle to produce written work.