Clifford C. Houk (Houk, Clifford C.)

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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)