Here you can find the Library's Research Guides with all the steps you need to take in order to write a successful assignment, including how to correctly cite your sources using References :
Information Literacy Guide (online step-by-step guide on how to start an assignment and how to reference your sources, without username or password)
Research Guide on Moodle platform (same guide as a Library Course, using your Perrotis Moodle username and password to enter)