Reference Tools  

Reference sources are authoritative works that you can refer to for specific answers or information.  There are many types of reference sources, including dictionaries, encyclopedias, thesauri, directories, and almanacs.   But in broader terms, reference works can also include materials such as bibliographies, handbooks, atlases, gazetteers, style manuals, or statistical sources. 
Source: University of Chicago Library

The Bothell Campus Library has reference materials both online and in print.  Print reference sources can be found on the first floor of the library.