There is a code for every occasion in this b ook. Young readers can find out how to invent their own sets of secret signals and how to scramble messages in countless different ways. '
Reihe
Sprache
Verlagsort
Zielgruppe
Illustrationen
colour illustrations and photographs
Maße
Höhe: 180 mm
Breite: 115 mm
Gewicht
ISBN-13
978-0-7460-2794-3 (9780746027943)
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Schweitzer Klassifikation
