Here's why:
* Clarity: Placing it at the end allows readers to easily find the sources after they've read your paper and need to verify information or learn more.
* Organization: It's standard academic practice to put all supporting information at the end of a research paper.
* Flow: A works cited page in the beginning would interrupt the flow of your paper and make it difficult to read.
Remember to use a consistent citation style (MLA, APA, Chicago, etc.) throughout your paper and works cited page.