Historical research is often informed by reference materials from many disciplines. Reference online and in print brings together some of the library's many reference works while providing tips on how to locate others. The types of works profiled in this guide include dictionaries, encyclopedias, thesauri, grammar and usage guides, biographical sources, sources for quick facts, directories and bibliographies, across the disciplines.
Reference resources come in several formats. Online resources will be shown by title in NUsearch. Print resources are also listed in NUsearch, by title. Print resources which do not circulate are available in the main library periodical room. For more information, inquire at the Research Help Desk, send us an IM, email or call us.
The Reference and User Services section of the American Library Association has produced Primary Sources on the Web: Finding, Evaluating, Using. This is a very useful guide to judging the quality and reliability on online sources.
See also Evaluating Sources: An Overview, from The Owl, which is Purdue University's online writing lab.
NuWrite, Northwestern's online writing community (hosted by the Writing Program) provides a section on evaluating sources for writing.