Referencing your work
Taken from Wikipedia
Author-date referencing — also known as Harvard referencing or parenthetical referencing — is a citation system used for writing and organizing the citation of source material.
Under the author-date referencing system, a brief citation to a source is given in parentheses within the text of an article, and full citations collected in alphabetical order by author's last name under a "references," "bibliography," or "works cited" heading at the end. The in-text citation is placed in parentheses after the sentence or part thereof that the citation supports, and includes the author's name, year of publication, and a page number where appropriate (Smith 2008, p. 1) or (Smith 2008:1). A full citation is given in the references section:
Smith, John. Playing nicely together. San Francisco: Wikimedia Foundation, 2008.
Any work submitted for marking must be fully referenced.