APA (7th ed.) Citation

Butler, J. T. (1993). A Current Awareness Service Using Microcomputer Databases and Electronic Mail.

Chicago Style (17th ed.) Citation

Butler, John T. A Current Awareness Service Using Microcomputer Databases and Electronic Mail. 1993.

MLA (9th ed.) Citation

Butler, John T. A Current Awareness Service Using Microcomputer Databases and Electronic Mail. 1993.

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