Computer fraud and countermeasures / Leonard I. Krauss, Aileen MacGahan. Krauss, Leonard I. MacGahan, Aileen, joint author. Computer crimes. Electronic data processing departments Security measures. Fraud. Computer security. 364.1 KRC Includes index. Bibliography: p. 429-430. Englewood Cliffs, N.J. : Prentice-Hall, c1979. c1979. 1979 Text xv, 509 p. : eng