It's important to cite sources you used in your research for several reasons:
MLA stands for the Modern Language Association, and its style guidelines have been assisting authors since 1951. MLA style is most commonly used to cite sources within the language arts, cultural studies, and other humanities disciplines. For more information, please consult the official MLA Handbook (9th ed.).
Please note that MLA guidelines do change over time, so it’s important to be aware of the most current information. As always, follow the requirements of your teacher or professor; their requirements take precedence.