[Le poème-concret est-il idiot?]
MLA
Chopin, Henri. [Le Poème-Concret Est-Il Idiot?]. 1961. https://collections.library.yale.edu/catalog/16706455.
APA, 6th edition
Chopin, H. (1961). [Le poème-concret est-il idiot?] [Manuscripts, Typescripts]. https://collections.library.yale.edu/catalog/16706455.