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Making secret codes

Jillian Gregory

2011
2011
first published
  • 2011Edge Books · ENGISBN 9781429645676
  • 2013Capstone · ENGISBN 9781476545509
  • 2021Capstone · ENGISBN 9781663977267
  • 2021Capstone · ENGISBN 9781663983381

"Discusses different methods for creating secret codes"--Provided by publisher.

Worth knowing

Written forMiddle grade
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