APA (7th ed.) Citation

Behan, K., & Holmes, D. (1984). Solving business problems by computer: Data processing today. Fontana.

Chicago Style (17th ed.) Citation

Behan, Kate, and Diana Holmes. Solving Business Problems by Computer: Data Processing Today. London: Fontana, 1984.

MLA (9th ed.) Citation

Behan, Kate, and Diana Holmes. Solving Business Problems by Computer: Data Processing Today. Fontana, 1984.