National Computer Security Conference Baltimore, National Institute of Standars and Technology, & National Computer Security Center (U.S.). (1989). 12th National Computer Security Conference, Baltimore Convention Center Baltimore, MD 10-13 October 1989 Proceedings: Information System Security : Solutions for Today - Concepts for Tomorrow. [S.N.].
Παραπομπή σε μορφή Chicago (17η εκδ.)National Computer Security Conference Baltimore, National Institute of Standars and Technology, και National Computer Security Center (U.S.). 12th National Computer Security Conference, Baltimore Convention Center Baltimore, MD 10-13 October 1989 Proceedings: Information System Security : Solutions for Today - Concepts for Tomorrow. [S.L.]: [S.N.], 1989.
Παραπομπή σε μορφή MLA (9th εκδ.)National Computer Security Conference Baltimore, et al. 12th National Computer Security Conference, Baltimore Convention Center Baltimore, MD 10-13 October 1989 Proceedings: Information System Security : Solutions for Today - Concepts for Tomorrow. [S.N.], 1989.