At USC all law students are required to use The Australian Guide to Legal Citation (AGLC4) published by Melbourne University.
AGLC4 has been revised and reprinted with a summary of changes below.
Footnotes are used to provide extra information that is not appropriate to include in the body of your writing. They are also used to back up an argument as well as to acknowledge your source. Footnotes provide information that enables the reader to retrieve the relevant source that is referred to in the text.
Sources such as legislation, cases, books, journals, reports, newspapers, interviews, radio, television and information from the Internet must be acknowledged in text and detailed in the footnotes.Superscript numbers should be placed at the end of the portion of text in your writing. The footnotes need to be numbered consecutively.
When a particular source is cited more than once in the body of writing the full bibliographic details should not be provided each time in the footnote. The terms "Ibid" and "above n" can be used. Please note that repeat citations of legislation or cases the term "above n" cannot be used.
'Ibid' is an abbreviation of the Latin term 'ibidem', meaning 'in the same place'. 'Ibid' should be used to refer a source in the immediately preceding footnote. However 'Ibid' should NOT be used where there are multiple sources in the preceding footnote.
The term 'Ibid' must be capitalised at the start of a footnote. If there is a pinpoint reference, (a reference to a specific place in the cited text) and the next footnote is to the same work and same place use 'Ibid'.
If you refer to the same source as the preceding footnote but to a different pinpoint reference you must use 'Ibid' followed by the pinpoint reference number.
Use 'above n' to refer to a source that has been cited in a previous footnote but NOT the immediately preceding one. However, you can use 'above n' to refer to an immediately preceding footnote, IF that footnote lists more than one source.
Do NOT use 'above n' for case citations or legislation.