There are three types of sources:
1) Primary Sources
2) Secondary Sources
3) Tertiary Sources
Search the library's many subscription databases to find primary source materials on your topic.
Google has scanned & made available thousands of local, regional and foreign newspapers. Search a time period or region, or browse newspapers by title.
Reference & Other Print Sources. Search PittCat to find primary source materials at ULS libraries. Make use of the many excellent print resources that are available to find primary source materials. These include:
Internet Search Engines