Citing Reliable Sources
Bowdoin College: The Common Types of Plagiarism
Public Domain and Creative Commons
What do Public Domain and Creative Commons mean? This guide (via Harvard Law School Library) will help you find and correctly attribute public domain and Creative Commons media for your project or presentation.
Is Wikipedia reliable? You shouldn't completely rely on Wikipedia, but it helps in getting a general overview of your topic, and you can often find good sources in the bibliography of the page. For a more detailed explanation, see this linked video.