APA (7th ed.) Citation

Parkhill, D. F. (1966). The challenge of the computer utility. Addison-Wesley.

Chicago Style (17th ed.) Citation

Parkhill, Douglas F. The Challenge of the Computer Utility. Reading, Mass: Addison-Wesley, 1966.

MLA (9th ed.) Citation

Parkhill, Douglas F. The Challenge of the Computer Utility. Addison-Wesley, 1966.