Encyclopaedia Britannica : Macropaedia Knowledge in depth Vol 6 .-15th Edn
Preece W E
Encyclopaedia Britannica : Macropaedia Knowledge in depth Vol 6 .-15th Edn - Encyclopaedia Britannica Inc, Chicago 1977
030 War
Encyclopaedia Britannica : Macropaedia Knowledge in depth Vol 6 .-15th Edn - Encyclopaedia Britannica Inc, Chicago 1977
030 War