Security for computer systems
By: by M. A. L. Farr, B. Chadwick, and K. K. Wong.
Contributors: Chadwick, B., joint author.; Wong, Kenneth Kiu, joint author.
Series: Computers and the professional
Publisher: National Computing Centre; Imprint unknown
Published: 1972
Place of publication: [Manchester]
Language: eng
Number of pages: 172
Subjects: Electronic data processing departments -- Security measures.
Notes: Bibliography: p. 155-161.
Three "matrix cost/effectiveness charts" in pocket.