APA (7th ed.) Citation

(1990). Directories in print: (formely the directory of directories) (7th ed.).

Chicago Style (17th ed.) Citation

Directories in Print: (formely the Directory of Directories). 7th ed. Detroit, New York, 1990.

MLA (9th ed.) Citation

Directories in Print: (formely the Directory of Directories). 7th ed. 1990.

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