Columbia subject headings:
Authors, French--19th century--Biography.
Authors, French--20th century--Biography.
Willy, 1859-1931.
Harvard subject headings:
Authors, French--Biography
Willy, 1859-1931.
Princeton subject headings:
Authors, French--19th century--Biography.
Authors, French--20th century--Biography.
Willy, 1859-1931.