HUGHES, L. (1987). Actually Useful Internet Security Techniques Larry J. Hughes. New Riders Publishing.
Chicago-viite (17. p.)HUGHES, Larry. Actually Useful Internet Security Techniques Larry J. Hughes. New Riders Publishing, 1987.
MLA-viite (8. p.)HUGHES, Larry. Actually Useful Internet Security Techniques Larry J. Hughes. New Riders Publishing, 1987.
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