You cite your sources:
Plagiarism is presenting another person's words and/or ideas as your own - either deliberately OR unintentionally.
To avoid plagiarism, give explicit credit to the person whose words and/or ideas you have made use of. This is called citing! You must cite any source that contributed significantly to the ideas in your own paper, if you do not quote from that source directly.
In this course, you will cite using the style created by the American Psychological Association (i.e. APA Style). We have several guides in the library for writing and citing in APA format, including a guide to electronic resources, specifically.
Take a look at: