Your research paper will include the use of primary sources. There are a wide variety of such sources, both published and unpublished, and this section will point you to some resources you can use to locate them.
While it may be necessary to conduct searches in catalogs, databases, and the web, you should not underestimate the enormous value of your secondary sources in providing you with guidance in identifying useful primary sources. Always check the notes and bibliographies of the books and articles you are using for your project, as these can be enormous time-savers.