: Chris Oxlade
: World War I
: Britannica Digital Learning
: 9781615356072
: 1
: CHF 10.80
:
: Kinder- und Jugendbücher
: English
World War I explores the secrets of World War I. As in all wars, each side needed to keep secrets from the enemy. At the same time, they tried to discover the enemy's secrets, using spies and code-breakers.