One of the major features of academic writing is acknowledging the books, journal articles and other information sources that you have used, usually by citing them one-by-one in your assignment and listing them all at the end in a bibliography. Often there are many marks for doing this correctly so it is a skill worth learning as soon as you can.
OSCOLA (Oxford Standard for Citation of Legal Authorities) is a referencing style commonly used in the study of law.
You can find examples of how to cite legislation, case law, books, articles and other commonly used documents in the
The complete OSCOLA guide (4th edition) is also available in full, and is licensed under a Creative Commons Attribution - Non Commercial - Share Alike 2.0 UK: England & Wales license.