Columbia subject headings:
Harvard subject headings:
Etain (France)--History--20th century.
Soldiers--France--Correspondence
World War, 1914-1918--France--Etain.
World War, 1914-1918--Personal narratives, French
Princeton subject headings:
Etain (France)--History--20th century.
Lefèvre, Émile Augustin, 1876-1917--Correspondence.
Soldiers--France--Correspondence.
World War, 1914-1918--France--Etain.
World War, 1914-1918--Personal narratives, French.