Columbia subject headings:
Maupassant, Guy de, 1850-1893--Criticism and interpretation.
Maupassant, Guy de, 1850-1893. Boule de Suif.
Harvard subject headings:
Maupassant, Guy de, 1850-1893--Criticism and interpretation.
Maupassant, Guy de, 1850-1893. Boule de Suif
Princeton subject headings:
Franco-Prussian War, 1870-1871--Literature and the war.
Maupassant, Guy de, 1850-1893. Boule de Suif.