Columbia subject headings:
Belgium--Guidebooks.
France--Guidebooks.
World War, 1914-1918--Battlefields--Guidebooks.
World War, 1914-1918--Belgium--Ieper.
Harvard subject headings:
Princeton subject headings:
Belgium--Guidebooks.
France--Guidebooks.
Guidebooks.
World War, 1914-1918--Battlefields--Guidebooks.
World War, 1914-1918--Belgium--Ieper.