Columbia subject headings:
France--Guidebooks.
United States. Army. American Expeditionary Forces.
World War, 1914-1918--Battlefields--Guidebooks.
Harvard subject headings:
France--Guidebooks.
United States. Army. American Expeditionary Forces.
World War, 1914-1918--Battlefields--Guidebooks.
Princeton subject headings:
France--Guidebooks.
Guidebooks.
United States. Army. American Expeditionary Forces
World War, 1914-1918--Battlefields--Guidebooks.