The tradition of scholarly discourse (as well as Western traditions regarding 'intellectual property') requires you to correctly cite all information that you are using (that is not 'common knowledge') that has come from someone else
Failure (either accidental or deliberate) to correctly cite information obtained from others is known as plagiarism
Plagiarism while in school can lead to failing grades on assignments, for an entire course, and even to expulsion from the institution
HOW?
Make use of the citation support offered by most academic databases
Many (but not all) of our databases will generate citations of search results for you to copy/paste
Google Scholar offers citations under each search result
Find and use a good Style Guide to check your citations (both the in-text / parenthetical citations and Bibliography/References at the end) prior to handing in your assignments
Just because a database or Google Scholar (or even Zotero) gave you a citation doesn't mean it's 100% correct, or complete
You are responsible for double-checking your citations, using a Style Guide, such as:
