APA (7th ed.) Citation

Gale Research Inc. (1989). City & state directories in print. Gale Research Inc..

Chicago Style (17th ed.) Citation

Gale Research Inc. City & State Directories in Print. Detroit: Gale Research Inc., 1989.

MLA (9th ed.) Citation

Gale Research Inc. City & State Directories in Print. Gale Research Inc., 1989.

Warning: These citations may not always be 100% accurate.