Columbia subject headings:
Bachelard, Gaston, 1884-1962.
Breton, André, 1896-1966.
Harvard subject headings:
Bachelard, Gaston, 1884-1962.
Breton, André, 1896-1966.
Princeton subject headings:
Bachelard, Gaston, 1884-1962.
Breton, André, 1896-1966.