Columbia subject headings:
Maeterlinck, Maurice, 1862-1949--Anniversaries, etc.
Maeterlinck, Maurice, 1862-1949--Bibliography.
Harvard subject headings:
Maeterlinck, Maurice, 1862-1949--Anniversaries, etc., 1962.
Maeterlinck, Maurice, 1862-1949--Bibliography.
Princeton subject headings: