Encyclopaedia britannica : Macropaedia Knowledge in depth Vol 4 .-15th Edn
Preece W E
Encyclopaedia britannica : Macropaedia Knowledge in depth Vol 4 .-15th Edn - Encyclopaedia Britannica, Chicago 1977
030 War
Encyclopaedia britannica : Macropaedia Knowledge in depth Vol 4 .-15th Edn - Encyclopaedia Britannica, Chicago 1977
030 War