APA (7th ed.) Citation

National Computer Security Center (U.S.). (1987). A guide to understanding discretionary access control in trusted systems. The Center.

Chicago Style (17th ed.) Citation

National Computer Security Center (U.S.). A Guide to Understanding Discretionary Access Control in Trusted Systems. [Fort George G. Meade, MD]: The Center, 1987.

MLA (8th ed.) Citation

National Computer Security Center (U.S.). A Guide to Understanding Discretionary Access Control in Trusted Systems. The Center, 1987.