The document provides guidance on using the Harvard referencing system. It explains that the Harvard system has two main components: 1) in-text citations that provide the author's last name and year of publication, and 2) a reference list that includes full bibliographic details of all cited sources in alphabetical order. Examples are given for how to reference a variety of sources like books, journal articles, websites, and more in both the in-text citations and reference list using the Harvard style.