APA (7th ed.) Citation

Hall, J. L., & Brown, M. J. (1981). Online bibliographic databases: An international directory (Second edition.). Aslib ; Gale Research Co. [distributor].

Chicago Style (17th ed.) Citation

Hall, J. L., and Marjorie J. Brown. Online Bibliographic Databases: An International Directory. Second edition. London : Detroit, Mich.: Aslib ; Gale Research Co. [distributor], 1981.

MLA (9th ed.) Citation

Hall, J. L., and Marjorie J. Brown. Online Bibliographic Databases: An International Directory. Second edition. Aslib ; Gale Research Co. [distributor], 1981.