These sources are for background research. You don't want to use them as sources in your paper, but rather as a way to get information about the background of your topic. These sources can help you figure out good search terms and areas to search for information.
OneSearch is a great place to start your research, as it combines most of the library's books, journal articles, and digital resources into a single search. Search OneSearch from the library website.
These sources are good places to go to find statistical information on a variety of topics.