|Below are online and printed resources to aid in city directory research.
- Burton, Robert E. "City Directories in the United States, 1784-1820: A Bibliography with Historical Notes." M.S. thesis, University of Michigan, 1956.
- Catalog of City, County, and State Directories Published in North America. New York: North American Directory Publishers, 1967.
- City and State Directories in Print, 1990-1991, 1st ed. Detroit: Gale Research Co., 1989.
- City Directories, by Brian G. Andersson
- City Directories Guide
- City Directories Mailing List
- City Directories of the United States Pre 1860 Through 1901: Guide to the Microfilm Collection. Woodbridge, Conn.: Research Publications, 1983.
- City vs. Telephone Directories, by George G. Morgan
- Cyndi's List: City Directories
- Davis, Marjorie V. Guide to American Business Directories. Washington, D.C.: Public Affairs Press, 1948.
- Directories in Print, 1992. 9th ed. Detroit: Gale Research Co., 1991.
- Do You Have an "Urban" Ancestor? Check out that City Directory! Online article by Trevia Wooster Beverly.
- Fun With City Directories, by Juliana Smith
- Genealogical Lectures on Cassettes
- Gordon Lewis Remington, "Research in Directories," in The Source: A Guidebook of American Genealogy, revised edition, ed. Loretto Dennis Szucs and Sandra Hargreaves Luebking (Salt Lake City: Ancestry Incorporated, 1997), 385-410.
- Guide to Researching Old Buildings: City Directories, by the Wisconsin Historical Society.
- Hofstetter, Eleanore O., and Harold C. Livesay. "Pre-Civil War Directories Sources in American History." RQ 8 (1968): 174-76.
- Kirkham, E. Kay. A Handy Guide to Record Searching in the Larger Cities of the United States. Logan, Utah: The Everton Publishers, 1974.
- Klein, Bernard. Guide to American Directories. 5th ed. Englewood Cliffs, N.J.: Prentice-Hall, 1962.
- Primary Sources - Directories, by the Toronto Public Library.
- Rootsweb's Guide to Tracing Family Trees: City Directories and Newspapers, Windows on the Past.
- Skillbuilding: Analyzing City Directories
- Spear, Dorothea N. Bibliography of American Directories Through 1860. Worcester, Mass.: American Antiquarian Society, 1961.
- Using City Directories
- Using Directories, by Juliana Smith