It is important to guide your reader back to the sources of the information you have used, and to give credit to the person who created the information in the first place.
What to look for:
On this page are some useful tools and examples of reference lists to help you to cite and reference your sources.
As you reference, be aware of copyright and how it works.
Endnote is a powerful tool for degree or post-graduate degree study. Ask at a library reception desk for the Endnote cd-rom.