Gilbert, Martin
The Routledge atlas of the first world war
Routledge, 1994
Buku Teks
Lord, Walter
Incredible victory / Walter Lord
Harper & Row, Publisher, 1967
Buku Teks SO
Fredericks, Pierce
The great adventure : America in the first world war
E.P. Dutton, 1960
Buku Teks SO
Fischer, Fritz
Germany's aims in the First World War / Fritz Fischer
W.W. Norton & Company, 1967
Buku Teks SO
Fischer, Fritz
World power or decline: the controversy over Germany's aims in the first world war
W.W. Norton, 1974
Buku Teks SO