APA (7th ed.) Citation

O.Brien, J. A. (1993). The nature of computers: With productivity software guides. Dryden Press.

Chicago Style (17th ed.) Citation

O.Brien, James A. The Nature of Computers: With Productivity Software Guides. Fort Worth: Dryden Press, 1993.

MLA (9th ed.) Citation

O.Brien, James A. The Nature of Computers: With Productivity Software Guides. Dryden Press, 1993.

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