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The secret life of codes / by Kjartan Poskitt ; illustrated by Ian Baker.

by Poskitt, Kjartan | Baker, Ian.

Series: Murderous mathsMaterial type: Text Text; Format: print ; Literary form: Not fiction ; Audience: Juvenile; Publication details: London : Scholastic, 2010Availability: Items available for loan: Main Library (1). Location(s): Junior Nonfiction (JN) Call number: JN 652.8 .P675 2007.
Totally cracking codes / Diana Kimpton ; illustrated by Mike Phillips.

by Kimpton, Diana | Phillips, Mike, 1961-.

Material type: Text Text; Format: print ; Literary form: Not fiction ; Audience: Juvenile; Publication details: London : Scholastic, 2010Availability: Items available for loan: Main Library (1). Location(s): Junior Nonfiction (JN) Call number: JN 652.8 .K567 2010.
Code talkers / Mary Anne Wollison ; illustrated by Andrew Barr

by Wollison, Mary Anne.

Material type: Text Text Publication details: OUP, UK 2014Availability: Items available for loan: Main Library (1). Location(s): Comics (C) Call number: C .W655 2014.