Gene Spafford (Spafford, Gene)

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  via
  Practical Unix and Internet Security
  by Alan Schwartz, Simson Garfinkel, Gene Spafford
  Softcover, Oreilly & Associates Inc, ISBN 0596003234 (0-596-00323-4)
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  Practical Unix and Internet Security
  by Simson Garfinkel, Gene Spafford
  Softcover, Oreilly & Associates Inc, ISBN 1565921488 (1-56592-148-8)
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  Practical UNIX Security
  by Simson Garfinkel, Gene Spafford
  Softcover, O'Reilly Media, Incorporated, ISBN 0937175722 (0-937175-72-2)
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  Web Security & Commerce
  by Simson Garfinkel, Gene Spafford
  Softcover, Oreilly & Associates Inc, ISBN 1565922697 (1-56592-269-7)
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  Web Security, Privacy, and Commerce
  by Simson Garfinkel, Gene Spafford
  Softcover, Oreilly & Associates Inc, ISBN 0596000456 (0-596-00045-6)