Reference works are an excellent first stop in your research and are incredibly useful for the following:
Reference works are a good starting off point, but should not be cited in your research as they are not considered primary or secondary sources. The only exception is when reference works contain primary and secondary sources (like collections of documents and essays).
These are reference works paid for by the library but available online.
Reference materials such as encyclopedias, dictionaries and bibliographies are excellent ways to begin your research. Reference materials tend to be library use only and unless otherwise noted, are located on the second floor of the library.