William Schlegl (Schlegl, William)

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  Bible Firsts: Math Mysteries to Solve
  by William Schlegl, Ed Koehler
  Softcover, Concordia Pub House, ISBN 0570052564 (0-570-05256-4)
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  Bible Character Codes
  by William Schlegl
  Softcover, Concordia Pub House, ISBN 0570053250 (0-570-05325-0)
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  Bible Christmas Puzzles
  by William Schlegl
  Softcover, School Specialty Childrens Pub, ISBN 0866534091 (0-86653-409-1)
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  Bible Puzzles For Kids: Ages 8 - 12
  by Standard Publishing
  Softcover, Standard Pub, ISBN 0784717885 (0-7847-1788-5)
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  Bible-Based Math Puzzles, Primary
  by William Schlegl, School Specialty Publishing
  Softcover, In Celebration, ISBN 1568225431 (1-56822-543-1)