What is Attribution?
Attribution is about "giving credit where credit is due." By acknowledging where information and ideas come from, you show respect for the intellectual work of those who came before. An example of attribution is a citation. Citations provide credibility to your work and build a firm foundation on which to build your new arguments and ideas. If scholarship is a conversation chain between authors, citations are the links that allow you to follow the conversation.
This is an example of a citation of Elie Wiesel's collection of essays Legends of Our Time.
Lehigh Carbon Community College . “MLA Citation.” http://infoguides.lccc.edu/content.php?pid=659802&sid=5464822
When attribution is not given for other people's work or ideas, that is plagiarism.