Referencing is a way of acknowledging the sources that you have used in your research project.
By referencing your sources, you:
demonstrate the level of your understanding on a specific topic.
provide evidence of the research you have made
add value to the point you are trying to make.
avoid plagiarism.
You can make a reference to your sources with:
In-text citations after a:
Quote
Paraphrase
Summary
The Works Cited List (Bibliography) and the end of your work (essay, report, etc)