Detectograms and other puzzles

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Bibliographic Details
Main Author: Ripley, H. A. (Harold Austind1896-
Other Authors: Hartswick, F. Gregory (Frederic Gregoryd1891-
Format: Book
Published: New York Bell Pub. Co. 1983
Subjects:
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Table of Contents:
  • Detectograms / by H.A. Ripley
  • Puzzles / by F. Gregory Hartswick
  • Answers to detectograms
  • Answers to puzzles.