The Code of Academic Integrity is Cornell University's official guideline concerning honesty in academic pursuits. One example of violating this code is stated as "knowingly representing the work of others as one's own." It is important to cite the work of others if you use or refer to it in your work.
For guidance in appropriately crediting the work of others when researching and writing, see the College of Arts and Science's website, Recognizing and Avoiding Plagiarism. Some of your professors may use the plagiarism detection software TurnitIn. For more information, see TurnitIn: Information for Students.
For brief guides on MLA, APA, and Chicago Manual citation styles, as well as an overview of citation management software options, see Cornell University Library's Citation Management page.