APA style (Publication manual of the American Psychological Association, 7th edition) is the style specified in your Subject Guide.
There are, however, many referencing styles, so if you publish articles in journals, you might find that a journal publisher requires a different style.
You can manually word process your references or you can use referencing software such as EndNote to help you do it. However, referencing software does not take away the need for students and researcher to know the rules of the referencing style that they are using.
The Referencing at Charles Sturt University webpage has lots of helpful information about referencing including links to the following resources:
The main referencing style at Charles Sturt University is APA 7th though this is not the only style used at the University and you should check with your lecturer if you are unsure.