00530pamaa2200169 4500 0000023405 20120203090000.0 0071007067 006.8 COO QA76.9.A25 COO 1989 COOPER Computer and communications security : strategies for the 1990s James Arlin Cooper. New York: McGraw Hill, 1989. xix, 411p.: ill.; 24cm. McGraw Hill communications series Includes bibliographicala references Computer security