Richard Post (Post, Richard)

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  Chemistry: Concepts and Problems
  by Richard Post, Clifford C. Houk
  Softcover, John Wiley & Sons Inc, ISBN 0471415006 (0-471-41500-6)
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  via
  Chemistry: Concepts and Problems A Self-Teaching Guide
  by Richard Post, Clifford C. Houk
  Softcover, John Wiley & Sons Inc, ISBN 0471121207 (0-471-12120-7)
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  Security Manager's Desk Reference
  by Richard Post, David Schachtsiek
  Hardcover, Butterworth-Heinemann, ISBN 0409900141 (0-409-90014-1)