Properly referencing sources that you've used in your assignments, in the style required by your lecturer, is an essential part of university writing.
Every time you use something created by someone else, you must acknowledge (i.e. reference) the source. You could use ideas, theories, quotes, images, or other content, and these could come from any number of sources - books, journal articles, or the web.
Referencing material created by others is necessary for academic integrity. Marks are also assigned to your referencing so it's important to learn why and how to reference.
|When to reference?||
|How to reference?||
Elements of Referencing has more information
|What style of referencing do I use?||
Referencing Styles has more information
For more topics on referencing, including paraphrasing and avoiding palgiarism, see the Foundation Studies Library Portal