APA (7th ed.) Citation

Helsing, C., Swanson, M., & Todd, M. A. (1989). Computer User's Guide to the Protection of Information Resources. U.S. Department of Commerce National Institute of Standars and Technology.

Chicago Style (17th ed.) Citation

Helsing, Cheryl, Marianne Swanson, and Mary Anne Todd. Computer User's Guide to the Protection of Information Resources. Washington: U.S. Department of Commerce National Institute of Standars and Technology, 1989.

MLA (9th ed.) Citation

Helsing, Cheryl, et al. Computer User's Guide to the Protection of Information Resources. U.S. Department of Commerce National Institute of Standars and Technology, 1989.