This 3 minutes video provides a concise overview and the basic setup for in-text citations.
"APA In-Text Citations 7th Edition" by Excelsior Online Writing Lab (OWL) 2020. Licensed under CC by 4.0
You must include in-text citations whenever you quote, summarize, or paraphrase outside sources in your paper, in addition to the reference list at the end. This allows you to give credit to the sources and easily trace back each piece of information to your source, strengthening your argument.