AGLC4 is a footnote referencing style - this means that citations are inserted into a footnote at the bottom of page. An advantage of using a footnote system is you can include additional information in the footnote that isn't appropriate to include in the body of the text.
In AGLC4 footnotes should
You'll find instructions on how to insert a footnote in Word on the Microsoft Support pages
Some judges have argued that a presumption of advancement applies wherever there is a ‘greater prima facie probability of a beneficial interest being intended’.1
This situation is likely to occur in the rarest of cases, since the court can always make a judgement about the relative credibility of evidence given by living parties.22
1 Wirth v Wirth (1956) 98 CLR 228, 237 (Dixon CJ). See also Calverley v Green (1984) 155 CLR 242, 250 (Gibbs CJ).
22 In Gissing v Gissing  AC 886, 907, Lord Diplock commented that presumptions are easily rebutted if both parties are still alive and capable of giving evidence.